Muhammad, A. M., Habibullah, A., Muhammad, I. A., Muhammed, A., Nakakana, U. N., & Muhammad, H. T. (2018). Knowledge of modern contraceptives among undergraduate students of College of Health Sciences of Usmanu Danfodiyo University Sokoto, Nigeria. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 7(6), 2100–2105. https://doi.org/10.18203/2320-1770.ijrcog20182317