INGWE, Richard. Physical health facilities in Nigeria’s sub-national regions: geodemographic and spatial analyses of health institutions in Nigeria’s 36 states and Federal Capital Territory. Bulletin of Geography. Socio-economic Series. Online. 2 April 2013. No. 18, p. 39–54. [Accessed 7 July 2024]. DOI 10.1515/v10089-012-0018-0.