| Hedinger, Robert, Joseph Ekandjoum, and Sylvia Hedinger | Petite grammaire de la langue mboó | 1981 | | Language and Culture Learning |
| Hedinger, Robert and Sylvia Hedinger, compilers | Min me Akɔɔse (Bakossi names) | 1994 | | Linguistics |
| Metuge, G. E. Roggy; Hedinger, Robert; Hedinger, Sylvia | Dé tel, dé lâŋ-ʼɛ Akɔɔse | 1992 | | |
| Hedinger, Robert and Sylvia Hedinger | Phonology of Akoose (Bakossi) | 1977 | | Linguistics |
| Metuge, G. E. Roggy; Hedinger, Robert; Hedinger, Sylvia | Détel, délâŋ-ˀɛ Akɔ́ɔ̄sē | 2009 | | |
| Hedinger, Robert; Hedinger, Sylvia | Mǐn mé Akɔ́ɔ́sé | 1994 | | |
