DU Audio Listings
| Elementary Level | (1 titles) | TICC | Title | Year | Media | Language | Length |
| DU 1.001 | Na ma-topo Duala | 1977 | Audiotape-Open Reel | Duala | 02:24:00 |
| Elementary Level | (1 titles) | TICC | Title | Year | Media | Language | Length |
| DU 1.001 | Na ma-topo Duala | 1977 | Audiotape-Open Reel | Duala | 02:24:00 |