found: Work cat.: Moñino, Y. Lexique comparatif des langues oubanguiennes, 1988:p. 11 (concerns group of languages called "oubanguien" or "oriental") p. 90-91 (covers 33 languages (plus Proto-Gbaya); divided into 5 groups: gbaya-manza-ngbaka; ngbandi-sango-yakoma; sere-ngbaka-mba; banda; zande) running title (lexiques oubanguiens)
found: Ethnologue language family index, 1996:p. 85 (Ubangi; 71 languages in 7 groups (Banda, Gbaya, Gbaya-Manza-Ngbaka, Ngbandi; Sere-Ngbaka-Mba, Zande))
found: Niger-Congo languages, 1989:p. 178 (Adamawa-Ubangi (known until 1971 as Adamawa-Eastern) branch of Niger-Congo has 2 subbranches: Adamawa in the west and Ubangi in the east) p. 192 (Subgroups: Gbaya, Banda, Ngbandi, Sere-Ngbaka-Mba, Zande)
found: Voegelin lang.:p. 127 (Eastern (of Adamawa-Eastern)=Ubangian)
