Mohamed، T. M. A. S. (2013). Effect of using collective competitive learning style on learning skills of passing and receiving in handball for grils of preparatory stage. المجلة الأوربية لتكنولوجيا علوم الرياضة، س2, ع2 ، 19 - 33. مسترجع من http://search.mandumah.com/Record/622364
Mohamed، Tamer Mahmoud Al Said. "Effect of Using Collective Competitive Learning Style On Learning Skills of Passing and Receiving in Handball for Grils of Preparatory Stage." المجلة الأوربية لتكنولوجيا علوم الرياضة س2, ع2 (2013): 19 - 33. مسترجع من http://search.mandumah.com/Record/622364