OWONIKOKO, K. M. Determinants of inter-pregnancy interval in Ogbomoso: an unmet need for contraceptive usage. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 4, n. 2, p. 316–321, 2017. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/1873. Acesso em: 3 oct. 2025.