Ukpabi, M. C., and S. O. Okpan. “Traditional Birth Attendants and Maternal Mortality: A Study of Ohaji Egbema, Imo State, Nigeria”. International Journal of Health and Social Inquiry, vol. 3, no. 1, July 2018, https://journals.aphriapub.com/index.php/IJHSI/article/view/323.