I realize this question might not be totally kosher since i'm not asking for any information to be spelled out here, merely asking for where to find it myself. But i can think of no better place to ask.
Thanks in advance.
The African continent is huge and complex, so works of synthesis are necessarily superficial. There are several works by Harold Courlander and by Jan Knappert that might of use to them. Search for titles by these authors, and you may find something that is of interest to you.