Nawar، L. M. (1980). Nuptiality Patterns and Differentials and their Implications for Fertility: A Recent Case Study in Cairo. السكان : بحوث ودراسات، ع21 ، 1 - 40. مسترجع من http://search.mandumah.com/Record/669439
Nawar، Laila Mahmoud. "Nuptiality Patterns and Differentials and Their Implications for Fertility: A Recent Case Study in Cairo." السكان : بحوث ودراسات ع21 (1980): 1 - 40. مسترجع من http://search.mandumah.com/Record/669439