المؤلفون: Karnirius Harefa, Ahmad Hafizullah Ritonga, Riri Safitri, Barita Aritonang, Rahmad Gurusinga, Irmayani Irmayani, Sri Wulan

المصدر: Indonesian Biomedical Journal, Vol 16, Iss 6, Pp 527-33 (2024)

مصطلحات موضوعية: Medicine (General), R5-920

وصف الملف: electronic resource

Relation: https://inabj.org/index.php/ibj/article/view/3361; https://doaj.org/toc/2085-3297; https://doaj.org/toc/2355-9179

URL الوصول: https://doaj.org/article/139f11dd7846424099fb44d46fc62526

المؤلفون: Ahmad Hafizullah Ritonga, Vivi Sisca, Barita Aritonang, Debi Meilani, Gusliani Eka Putri, Enzo Wiranta Battra Siahaan

المصدر: South African Journal of Chemical Engineering, Vol 52, Iss , Pp 1-7 (2025)

مصطلحات موضوعية: PLA, LLPDE, LLDPE-g-OA, HAp-ZnO, Nanocomposites, Chemical engineering, TP155-156

وصف الملف: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S1026918525000034; https://doaj.org/toc/1026-9185

URL الوصول: https://doaj.org/article/1466d1a8fe054d259b26b90d2b1c9524

المؤلفون: Samran, Sumardi, Ahmad Hafizullah Ritonga, Melati Yulia Kusumastuti

المصدر: Pharmaciana, Vol 14, Iss 2, Pp 121-132 (2024)

مصطلحات موضوعية: press-coated tablet, controlled release, furosemide, chitosan, hpcmp, Pharmacy and materia medica, RS1-441

وصف الملف: electronic resource

Relation: https://journal.uad.ac.id/index.php/PHARMACIANA/article/view/28097/pdf_305; https://doaj.org/toc/2088-4559; https://doaj.org/toc/2477-0256

URL الوصول: https://doaj.org/article/22562213fefa41089c4c95a29373a6ec

المؤلفون: Gusliani Eka Putri, Syukri Arief, Ahmad Hafizullah Ritonga, Wiya Elsa Fitri, Eliza Arman, Arniat Christian Telaumbanu, Rahmi Novita Yusuf

المصدر: Indonesian Journal of Chemistry, Vol 23, Iss 6, Pp 1525-1534 (2023)

مصطلحات موضوعية: cerium oxide nanoparticles, approach synthesis, phenol, moringa oleifera, photocatalytic, Chemistry, QD1-999

وصف الملف: electronic resource

Relation: https://jurnal.ugm.ac.id/ijc/article/view/81657; https://doaj.org/toc/1411-9420; https://doaj.org/toc/2460-1578

URL الوصول: https://doaj.org/article/67f578cea98e46f69d4cbc0c949eba0d

المؤلفون: Ahmad Hafizullah Ritonga, Barita Aritonang, Gusliani Eka Putri, Khairiah Khairiah, Enzo Wiranta Battra Siahaan, Debi Meilani

المصدر: Indonesian Journal of Chemistry, Vol 23, Iss 6, Pp 1694-1703 (2023)

مصطلحات موضوعية: pla, lldpe, o-pcc, lldpe-g-oa, composite, Chemistry, QD1-999

وصف الملف: electronic resource

Relation: https://jurnal.ugm.ac.id/ijc/article/view/86983; https://doaj.org/toc/1411-9420; https://doaj.org/toc/2460-1578

URL الوصول: https://doaj.org/article/6265e2be4b7c46c7aa340504a17b5ff0

المؤلفون: Rudi Kartika, Ahmad Hafizullah Ritonga, Lilik Sulastri, Siti Nurliana, Deddy Irawan, Partomuan Simanjuntak

المصدر: International Journal of Technology, Vol 14, Iss 4, Pp 791-799 (2023)

مصطلحات موضوعية: biosorption, hexavalent chromium, scenedesmus sp, toxicity, Technology, Technology (General), T1-995

وصف الملف: electronic resource

Relation: https://ijtech.eng.ui.ac.id/article/view/5188; https://doaj.org/toc/2086-9614; https://doaj.org/toc/2087-2100

URL الوصول: https://doaj.org/article/3d4efe3c754944eabcdef9d78c6f13af

المؤلفون: Gusliani Eka Putri, Arniati Labanni, Syukri Arief, Putri Dafriani, Ika Yulia Darma, Sri Handayani, Widyastuti, Norzawani Jaffar, Marsal Mahmud, Ahmad Hafizullah Ritonga

المصدر: Case Studies in Chemical and Environmental Engineering, Vol 11, Iss , Pp 101062- (2025)

مصطلحات موضوعية: Cerium oxide, Green synthesis, Precipitation, Antibacterial, Citrus nobilis Lour, Environmental engineering, TA170-171, Chemical engineering, TP155-156

وصف الملف: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S2666016424004560; https://doaj.org/toc/2666-0164

URL الوصول: https://doaj.org/article/3f32a51578dc421b9bf40427f72023e4

المؤلفون: Boy Isfa, Novesar Jamarun, Emriadi, Syukri Arief, Ahmad Hafizullah Ritonga, Denny Akbar Tanjung, Vivi Sisca

المصدر: International Journal of Technology, Vol 14, Iss 2, Pp 320-329 (2023)

مصطلحات موضوعية: matt-type water-based paint, pigment, tio2, tio2/zno, zno, Technology, Technology (General), T1-995

وصف الملف: electronic resource

Relation: https://ijtech.eng.ui.ac.id/article/view/5501; https://doaj.org/toc/2086-9614; https://doaj.org/toc/2087-2100

URL الوصول: https://doaj.org/article/db89faff65e346058ea33fecdd117107

المؤلفون: Denny Akbar Tanjung, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Boy Isfa, Ahmad Hafizullah Ritonga, Vivi Sisca

المصدر: International Journal of Technology, Vol 14, Iss 1, Pp 173-184 (2023)

مصطلحات موضوعية: bioplastics, compatibilizer, coupling agent, grafting, starch, Technology, Technology (General), T1-995

وصف الملف: electronic resource

Relation: https://ijtech.eng.ui.ac.id/article/view/4926; https://doaj.org/toc/2086-9614; https://doaj.org/toc/2087-2100

URL الوصول: https://doaj.org/article/77b1d0c3a40b4bbd8ba1576fc08c39ec

المؤلفون: Ahmad Hafizullah Ritonga, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Denny Akbar Tanjung, Boy Isfa

المصدر: International Journal of Technology, Vol 14, Iss 1, Pp 162-172 (2023)

مصطلحات موضوعية: blends, compatibilizer, cyclic natural rubber, linear low-density polyethylene, oleic acid-grafted linear low-density polyethylene, Technology, Technology (General), T1-995

وصف الملف: electronic resource

Relation: https://ijtech.eng.ui.ac.id/article/view/5085; https://doaj.org/toc/2086-9614; https://doaj.org/toc/2087-2100

URL الوصول: https://doaj.org/article/b87f00ea27964acf9860964630effb32

المؤلفون: Ahmad Hafizullah Ritonga, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Denny Akbar Tanjung, Boy Isfa, Vivi Sisca, Hendri Faisal

المصدر: Journal of Materials Research and Technology, Vol 17, Iss , Pp 2326-2332 (2022)

مصطلحات موضوعية: PCC, O-PCC, Oleic acid, Polymer composites, LLDPE/CNR blends, Mining engineering. Metallurgy, TN1-997

وصف الملف: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S2238785422001259; https://doaj.org/toc/2238-7854

URL الوصول: https://doaj.org/article/0241b9d124824f2db6c5915d0d1c8a64

المؤلفون: Denny Akbar Tanjung, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Ahmad Hafizullah Ritonga, Boy isfa

المصدر: Indonesian Journal of Chemistry, Vol 22, Iss 1, Pp 171-178 (2022)

مصطلحات موضوعية: bioplastic, compatibilizer, coupling agent, lldpe-g-ma, thermoplastic, Chemistry, QD1-999

وصف الملف: electronic resource

Relation: https://jurnal.ugm.ac.id/ijc/article/view/68558; https://doaj.org/toc/1411-9420; https://doaj.org/toc/2460-1578

URL الوصول: https://doaj.org/article/8e87256bde364f119dd1656dfca4ebbd

المؤلفون: Ahmad Hafizullah Ritonga, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Denny Akbar Tanjung, Boy Isfa

المصدر: Indonesian Journal of Chemistry, Vol 22, Iss 1, Pp 233-241 (2021)

مصطلحات موضوعية: o-pcc, lldpe, cnr, lldpe-g-oa, filler, Chemistry, QD1-999

وصف الملف: electronic resource

Relation: https://jurnal.ugm.ac.id/ijc/article/view/68888; https://doaj.org/toc/1411-9420; https://doaj.org/toc/2460-1578

URL الوصول: https://doaj.org/article/0fe9d80ef36c448fac57fa77d3b66b2c

المؤلفون: Barita Aritonang, Ahmad Hafizullah Ritonga, Karnirius Harefa, Herlina, Dicky Yuswardi Wiratma

المصدر: Jurnal Indah Sains dan Klinis; Vol. 5 No. 2 (2024): Jurnal Indah Sains dan Klinis; 19-24 ; Jurnal Indah Sains dan Klinis; Vol 5 No 2 (2024): Jurnal Indah Sains dan Klinis; 19-24 ; 2747-1942 ; 10.52622/jisk.v5i3

مصطلحات موضوعية: Polyethylene, polyamide, compatibilizer, LDPE-g-AO, polymer blend

وصف الملف: application/pdf

Relation: https://ejournal.sumateraconnect.or.id/index.php/jisk/article/view/74/108; https://ejournal.sumateraconnect.or.id/index.php/jisk/article/view/74

الاتاحة: https://ejournal.sumateraconnect.or.id/index.php/jisk/article/view/74
https://doi.org/10.52622/jisk.v5i2.05

المؤلفون: Barita Aritonang, Nova Florentina Ambarwati, Eka Margaretha Sinaga, Ahmad Hafizullah Ritonga

المصدر: Jurnal Multidisiplin Madani, Vol 2, Iss 6, Pp 2611-2626 (2022)

مصطلحات موضوعية: skin of salak, activated charcoal, adsorbent, textile industry, Social Sciences, Science

Relation: https://journal.formosapublisher.org/index.php/mudima/article/view/441; https://doaj.org/toc/2808-5639; https://doaj.org/article/0464b09b2ee14c1b8221658413a9bd6b

الاتاحة: https://doi.org/10.55927/mudima.v2i6.441
https://doaj.org/article/0464b09b2ee14c1b8221658413a9bd6b

المؤلفون: Eka Margaretha Sinaga, Nova Florentina Ambarwati, Barita Aritonang, Ahmad Hafizullah Ritonga

المصدر: Jurnal Multidisiplin Madani, Vol 2, Iss 2, Pp 877-888 (2022)

مصطلحات موضوعية: antiseptic soap, lemon peel, antibacterial activity, Social Sciences, Science

Relation: https://journal.formosapublisher.org/index.php/mudima/article/view/179; https://doaj.org/toc/2808-5639; https://doaj.org/article/ef36d3bccdcc4b929d2a477f9466937d

الاتاحة: https://doaj.org/article/ef36d3bccdcc4b929d2a477f9466937d

المؤلفون: Karnirius Harefa, Barita Aritonang, Ahmad Hafizullah Ritonga

المصدر: Jurnal Multidisiplin Madani, Vol 2, Iss 6, Pp 2743-2758 (2022)

مصطلحات موضوعية: purple passion fruit peel, propionibacterium acnes, antibacterial, Social Sciences, Science

Relation: https://journal.formosapublisher.org/index.php/mudima/article/view/469; https://doaj.org/toc/2808-5639; https://doaj.org/article/0f907cc5be9f4d79b6b8c57767e0571a

الاتاحة: https://doi.org/10.55927/mudima.v2i6.469
https://doaj.org/article/0f907cc5be9f4d79b6b8c57767e0571a

المؤلفون: Ahmad Hafizullah Ritonga, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Denny Akbar Tanjung, Boy Isfa

المصدر: THE 9TH INTERNATIONAL CONFERENCE OF THE INDONESIAN CHEMICAL SOCIETY ICICS 2021: Toward a Meaningful Society.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::66a34ef1f68e80b11327fb8d9a69d051
https://doi.org/10.1063/5.0104027

المؤلفون: Denny Akbar Tanjung, N Jamarun, Syukri Arief, Hermansyah Aziz, Ahmad Hafizullah Ritonga, Vivi Sisca, Boy Isfa

المصدر: SSRN Electronic Journal.

مصطلحات موضوعية: History, Polymers and Plastics, Business and International Management, Industrial and Manufacturing Engineering

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a2c228cfeb1eb51beea77abf883e61ee
https://doi.org/10.2139/ssrn.4089074

المؤلفون: Ahmad Hafizullah Ritonga, Denny Akbar Tanjung

المصدر: Pelita Masyarakat. 1:39-45

مصطلحات موضوعية: Briquette, Waste management, visual_art, visual_art.visual_art_medium, Environmental science, Environmental pollution, Lack of knowledge, Charcoal, Alternative fuels, Husk

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::d438ed60ce4a0468961d73ce185e3780
https://doi.org/10.31289/pelitamasyarakat.v1i1.2720