Al Namlah، A. A. S.، و Meins، E. (2002). A Sociocultural Approach to Memory Development: Private Speech and Culture as Determinants of Early Remembering (رسالة دكتوراه غير منشورة). Durham University، درم. مسترجع من http://search.mandumah.com/Record/608926
Al Namlah، Abd Alrahman S.، و Elizabeth Meins. "A Sociocultural Approach to Memory Development: Private Speech and Culture As Determinants of Early Remembering" رسالة دكتوراه. Durham University، درم، 2002. مسترجع من http://search.mandumah.com/Record/608926