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1Academic Journal
المصدر: Journal of Professional Issues in Engineering Education and Practice ; volume 130, issue 2, page 95-108 ; ISSN 1052-3928 1943-5541
الاتاحة: https://doi.org/10.1061/(asce)1052-3928(2004)130:2(95)
https://ascelibrary.org/doi/pdf/10.1061/%28ASCE%291052-3928%282004%29130%3A2%2895%29