O. M. Kolawole, M. M. Suleiman, O. O. Alabi, J. I. Ogah, and O. O. Amuda, “Seroprevalence of Rubella Viral Infection in Women of Childbearing Age in Lokoja, Nigeria”, STAR, vol. 4, no. 1, pp. 129–133, Mar. 2015.