1. Taapopi, F.N. (2016) Exploring the Knowledge, Attitudes and Practices Regarding the Intrauterine Contraceptive Device (IUD/IUCD) among Family Planning Acceptors and Providers in Khomas Region, Namibia. Ph.D. Thesis, University of Namibia, Windhoek.
2. United Nations Fund for Population Activities (2012) A Deadly Gap: Meeting the Unmet Need for Reproductive Health Care.
https://www.unfpa.org/sites/default/files/resource-pdf/EN-SRH%20fact%20sheet-DeadlyGap.pdf
3. Crosignani, P.G. (2008) Intra Uterine Devices and Intra Uterine System. Human Reproduction Update, 14, 197-208.
4. An all time low utilization of intrauterine contraceptive device as a birth spacing method- a qualitative descriptive study in district Rawalpindi, Pakistan
5. Belaying, B., Kassie, G., Asnake, M., Zerihun, H. and Ali, I. (2016) Utilization and Determinants of Modern Family Planning among Women of Reproductive Age Group in Ethiopia: Results from Integrated Family Health Program. The Ethiopian Journal of Health Development, 30, 4-10.