The General Libraries house a number of African language courses (text & audio). All are listed in EUCLID and stored in the Music and Media Library. Included are:
In addition, the library has collections of dictionaries, grammars, and guides for a number of other African languages. Holdings are listed in EUCLID under the name of the language.
The Africa South of the Sahara website has excellent listings of resources on African languages including language courses and instructors.