Andersen, Torben. 1993. Verbal roots and verbal inflection in Berta. African Languages and Cultures 6(2). 97–119. Taylor & Francis.
@article{andersen1993berta, author = {Andersen, Torben}, journal = {African Languages and Cultures}, number = {2}, pages = {97–119}, publisher = {Taylor & Francis}, title = {Verbal roots and verbal inflection in Berta}, volume = {6}, year = {1993} }