Bostoen, Koen, and Hilde Gunnink. “The Impact of Autochthonous Languages on Bantu Language Variation : A Comparative View on Southern and Central Africa.” The Cambridge Handbook of Language Contact : Volume 1 : Population Movement and Language Change, edited by Salikoko Mufwene and Anna Maria Escobar, Cambridge University Press, 2022, pp. 152–86, doi:10.1017/9781316796146.009.
