Wayland, E. J. (July–Dec 1934). "Rifts, Rivers, Rains and Early Man in Uganda". Journal of the Royal Anthropological Institute. Royal Anthropological Institute of Great Britain and Ireland. 64: 333–352. doi:10.2307/2843813. JSTOR2843813.Periksa nilai tanggal di: |date= (bantuan); Parameter |access-date= membutuhkan |url= (bantuan)
Wayland, E. J. (July–Dec 1934). "Rifts, Rivers, Rains and Early Man in Uganda". Journal of the Royal Anthropological Institute. Royal Anthropological Institute of Great Britain and Ireland. 64: 333–352. doi:10.2307/2843813. JSTOR2843813.Periksa nilai tanggal di: |date= (bantuan); Parameter |access-date= membutuhkan |url= (bantuan)