المؤلفون: St. Andre Kean, Elizabeth, Welsh, Catherine A.C.

المصدر: Educational Technology, 1980 Jul 01. 20(7), 41-45.

URL الوصول: https://www.jstor.org/stable/44423190

المؤلفون: Tong, James Yingpeh, St. Andre Kean, Elizabeth, Hall, Barbara Buus

المصدر: Inorganic Chemistry ; volume 3, issue 8, page 1103-1105 ; ISSN 0020-1669 1520-510X

الاتاحة: http://dx.doi.org/10.1021/ic50018a009
https://pubs.acs.org/doi/pdf/10.1021/ic50018a009