APA aipamena

Ali, A. A. A., Rayis, D. A., Mamoun, M., & Adam, I. (2011). Use of family planning methods in Kassala, Eastern Sudan. BioMed Central.

Chicago Style aipamena

Ali, Abdel Aziem A., Duria A. Rayis, Mona Mamoun, and Ishag Adam. Use of Family Planning Methods in Kassala, Eastern Sudan. BioMed Central, 2011.

MLA aipamena

Ali, Abdel Aziem A., Duria A. Rayis, Mona Mamoun, and Ishag Adam. Use of Family Planning Methods in Kassala, Eastern Sudan. BioMed Central, 2011.