| Diller, Jason; Jordan-Diller, Kari | A rapid appraisal survey of Tuki (ALCAM: 355), Mbam and Kimi Division, Centre Province | 1999 | | Language Assessment, Sociolinguistics |
| Brye, Elizabeth; Brye, Edward; Mbongue, Joseph; Engelbert, Domche Teko | Première évaluation globale de la situation sociolinguistique de la langue lefa (ALCAM 581: ləfaʼ) | 1999 | | Language Assessment, Sociolinguistics |
| Boone, Douglas W., David P. Bradley and Caroline A. Grant | Central Yambasa survey report | 1999 | Journal of Language Survey Reports | Language Assessment, Sociolinguistics |
| Diller, Jason; Hamm, Cameron; Jordan-Diller, Kari; Assako a Tiati, Ferdinand | A rapid appraisal survey of the Western Beboid languages (Menchum Division, North-West Province) ALCAM [875, 877, 878, 879] | 1999 | | Language Assessment, Sociolinguistics |
