«Perceived barriers influencing uptake of contraceptives among female undergraduates in University of Benin, Edo State», AJBR, т. 25, вып. 1, сс. 19–25, янв. 2022, просмотрено: 21 май 2026 г. [онлайн]. доступно на: https://www.ojshostng.com/index.php/ajbr/article/view/257