Wassif، S. M.، El Sharkawy، G. F.، Khater، N. M.، و El Sayed، H. S. (2011). Studying and managing breastfeeding difficulties among pregnant females attending mother and child health care center in Belbeis district, Sharkia governorate, Egypt. مجلة دراسات الطفولة، مج14, ع51 ، 1 - 12. مسترجع من http://search.mandumah.com/Record/656728
Wassif، Samir M.، Ghada F. El Sharkawy، Nahed M. Khater، و Hanaa S. El Sayed. "Studying and Managing Breastfeeding Difficulties Among Pregnant Females Attending Mother and Child Health Care Center in Belbeis District, Sharkia Governorate, Egypt." مجلة دراسات الطفولة مج14, ع51 (2011): 1 - 12. مسترجع من http://search.mandumah.com/Record/656728