A "Bemba" language of South Kivu was listed in Ethnologue 17 as ISO code [bmy]. However, the name, Kinyabemba, is the language of the Banyabemba, one of the tribes that speak Buyu. (It is not the Bemba language of Zambia.) "Songa" [sgo] is another Buyu-speaking tribe rather than a distinct language. "Buya" [byy] is unidentified, but may be a typo for Buyu. The codes were retired in 2014.