Wa Githiora, C. 1990. Max Liniger-Goumaz, <em>Historical Dictionary of Equatorial Guinea</em> (African Historical Dictionary, No. 21), The Scarecrow Press Inc., Metuchen y Londres, 1988. Estudios de Asia y África. 25, 2 (may 1990), 371–372. DOI:https://doi.org/10.24201/eaa.v25i2.1183.