K. M. Owonikoko, A. G. Adeoye, A. M. Tijani, and A. O. Adeniji, “Determinants of resumption of vaginal intercourse in puerperium period in Ogbomoso: consideration for early use of contraceptives”, Int J Reprod Contracept Obstet Gynecol, vol. 3, no. 4, pp. 1061–1066, Feb. 2017.