El Deeb، B. (1980). Fertility and Mortality in a Rural Egyptian Comunity: A Case Study in Beshla Village, Dakahliya Governorate Lower Egypt. السكان : بحوث ودراسات، ع21 ، 41 - 96. مسترجع من http://search.mandumah.com/Record/669442
El Deeb، Bothiana. "Fertility and Mortality in a Rural Egyptian Comunity: A Case Study in Beshla Village, Dakahliya Governorate Lower Egypt." السكان : بحوث ودراسات ع21 (1980): 41 - 96. مسترجع من http://search.mandumah.com/Record/669442