Smith, Andrew 1833. African zoology, part I. Mammalia [no. 1]. South African Quarterly Journal Second Series, No. 1 (part 1, October-December 1833): 17-32.
Kenya Wildlife Service 2025. Kenya rhino range expansion as catalysts of a wildlife economy. KWS Wild Magazine no. 4: 1-4.
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Kenya Wildlife Service 2025. National Wildlife census 2025 technical report (abridged version) (. Naivasha, Wildlife Research and Training Institute. pp. 1-163.