Yasa language

Iyasa (Yasa, Yassa) is a Bantu language of Cameroon and Equatorial Guinea by Ndowe coastal fishing people. It is also spoken by Pygmies, perhaps Babongo, in Gabon.
Iyasa also goes by the names Bongwe, Lyaasa, and Maasa. Dialects are "Bweko, Vendo, Bodele, Marry, One, Asonga, Bomui, Mogana, Mooma, Mapanga". It may in turn be a dialect of Kombe. Speakers report that Kombe and Iyasa are almost perfectly mutually intelligible.
Classification.
Dieu and Renaud (1993) classify Iyasa as a Sawabantu language (A.30 in Guthrie classification).
Geographic Distribution.
Iyasa is spoken along the coast of Cameroon south of Kribi, including in the city of Campo. It is also spoken across the Ntem River in Equatorial Guinea. The northernmost Iyasa village is Lolabe, 31 km south of Kribi.
Phonology.
Iyasa has a seven-vowel system: 
It also has 22 phonemic consonants: 
Grammar.
Noun classes.
Iyasa has 12 noun classes, as outlined in the table below (adapted from Bôt 2011 and Bouh Ma Sitna 2004):