Fedrick, F. ., L. . Mkingule, H. . Mtae, and P. E. . Kigadye. “Factors Influencing Male Involvement in the Utilization of Family Planning in Chato District, Geita Region Tanzania”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 69, no. 1, June 2020, pp. 121-39, https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5945.