
Hilton-Simpson, M W. 1881-1938 Land and Peoples of the Kasai: Being a Narrative of a two Year's Journey Among the Cannibals of the Equatorial Forest and Other Savage Tribes of the South-western Congo

Rattray, R S. 1881-1938 Hausa Folk-lore, Customs, Proverbs, etc.: Collected and Transliterated With English Translation and Notes: 2