Ojo, Williams, Adegoke Olufemi, Agwu Ibiam, Uduma Eme, Balonwu Lucia, and Madueke Leila. 2016. “Strengthening The Efficiency of Orphan and Vulnerable Children Program Design and Implementation through Geospatial Application in Nigeria”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 29 (3):252-60. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6278.