AU - El Omda, Ali Ali OP - pp. 339-369 T1 - The effect of different types of interactions in social networks (Facebook - Twitter) in e-learning platform on developing e-Learning and some of social communications skills [Article] UL - http://search.shamaa.org/PDF/Articles/EGAsep/AsepNo27P3Y2012/asep_2012_n27-p3_339-369_eng.pdf Full text (PDF) 1 http://search.shamaa.org/fulltext.gif