Atuhaire, S., J. Ngendakumana, A. Galadima, A. Adam, and R. B. Muderhwa. “Knowledge and Attitude towards Contraceptive Use Among Adolescents in Africa: A Systematic Review”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 10, no. 11, Oct. 2021, pp. 4292-03, doi:10.18203/2320-1770.ijrcog20214349.