Ngiti: a central-sudanic language of Zaire - Lojenga, Constance Kutsch (Koln: Rudiger Koppe Verlag, 1994)
Keywords: Gbaya language (Central Sudanic) -- Grammar, Comparative -- Aja (Sudan); Gbaya language (Central Sudanic) -- Grammar, Comparative -- Baka (Congo (Democratic Republic) and South Sudan) -- Grammar, Comparative| -- Kresh; Baka language (Congo (Democratic Republic) and South Sudan) -- Grammar, Comparative -- Sudan -- Aja