Manenguba
- Hedinger, R.A. The Manenguba Languages (Bantu A.15 Mbo Cluster) of Cameroon. London: School of Oriental and African Studies, University of London, 1987.
- Hedinger, R.A. A Comparative-Historical Study of the Manenguba Languages (Bantu A.15 Mbo Cluster) of Cameroon. Ph.D., University of London, 1984.