M. Ambetsa, jacob wakhungu, charles mutai, and grace omoni, “Contributing Factors to Late Age Pregnancy and its Outcome Among Elderly Primigravidas in Kakamega County,Kenya”, ASRJETS-Journal, vol. 26, no. 2, pp. 154–164, Nov. 2016, Accessed: Oct. 24, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/2296