Bua languages
Asụsụ Bua bụ obere obere mkpokọta Mbum–Day nke asụsụ Savanna nke ihe na-erughị mmadụ 30,000 na-asụ na ndịda Chad na mpaghara gbatịpụrụ n'etiti Osimiri Chari na Guéra Massif. Akpọrọ ha "G13" na atụmatụ asụsụ Adamawa nke Joseph Greenberg. Ha bụ ndị ezinaụlọ Niger–Congo n'ikpeazụ, ma nwee mmetụta dị ukwuu na Laal.

Asụsụ Bua enweela mmekọrịta dị ukwuu na asụsụ Chadic.

Asụsụ 
Asụsụ Bua gụnyere:

 Asụsụ Bua (ndị na-asụ 7,708 na 1993), n'ebe ugwu nke Osimiri Chari gburugburu Korbol na Gabil (nke a gụrụ aha otu ahụ); na Fanian nwere nghọta.
 Fanian, ma ọ bụ Mana, ma ọ ọ bụ Kobe (> 1,100 ndị na-ekwu okwu na 1997), n'obodo nta Mouraye, Sengué, Malakonjo, Rim, Sisi, Karo n'ebe ọdịda anyanwụ nke Lake Iro.
 Niellim ma ọ bụ Lua (ndị na-asụ 5,157 na 1993), a na-asụrụ ya gburugburu Niellim na Niou n'akụkụ Osimiri Chari n'ebe ugwu Sarh (gụnyere asụsụ Chini)
 Tunia (2,255 ndị na-asụ na 1993), gburugburu Sarh (gụnyere asụsụ Perim)
 Noy ma ọ bụ Loo (ndị ọkà okwu 36 na 1993), a na-asụ na Bedaya, Balimba, Djoli, Koumra, na Koumogo n'ebe ndịda Sarh.  Ọ fọrọ nke nta ka ọ kwụsị.
 Asụsụ Gula:
 Gula Iro ma ọ bụ Kulaal (3,500 ọkà okwu na 1991), gburugburu Lake Iro.
 Zan Gula (4,000 ndị na-ekwu okwu na 1997), gburugburu Zan na Chinguil.
 Bon Gula (> ndị ọkà okwu 1,200 na 1997), n'obodo nta Bon na Ibir.
 Koke (600 ọkà okwu na 1993), gburugburu Daguela
 Bolgo (1,800 ndị na-ekwu okwu na 1993), nso Melfi, na Koya, Boli, Gagne, na Bedi.

Onye mbụ hụrụ myirịta dị n'etiti Bua na Niellim nke e bipụtara bụ Gustav Nachtigal, na 1889. Maurice Gaudefroy-Demombynes gbakwunyere Tunia na "Mana" (ikekwe aha ọzọ maka Fanian) na 1907, na-etolite "Groupe Boa". Johannes Lukas (1937) kọwara n'otu aka ahụ "Bua-Gruppe" nke nwere Bua, Niellim, na Koke, na na nhazi nke Joseph Greenberg nke 1963 The Languages ​​of Africa, a na-etinye asụsụ atọ ahụ ọnụ na subphylum Adamawa dịka otu akpọrọ Adamawa-13. . Mgbe e mesịrị, Pairault (1965, 1969) gbakwunyere asụsụ Gula ndị ọzọ dị n'ebe ugwu, Fanian, Koke, na Bolgo, na-enye ohere Samarin (1971) kọwapụta kpọmkwem ndị otu asụsụ Bua/Adamawa-13 dị ugbu a. Palayer mechara tinye Noy.

Ndepụta zuru ezu nke asụsụ Bua sitere na Boyeldieu, et al. (2018: 55-56) ka enyere n'okpuru.

Nhazi 
Nkewa izizi nke Kastenholz (2017:2) kewara asụsụ Bua ka ọ bụrụ otu Riverine na otu n'ime ala.