Persson, Janet. 2004. Bongo-Bigirmi Languages in Sudan. Occasional Papers in the Study of Sudanese Languages 9. 77–84.
@article{1424_mgc,
author = {Persson, Janet},
journal = {Occasional Papers in the Study of Sudanese Languages},
pages = {77–84},
title = {Bongo-Bigirmi Languages in Sudan},
volume = {9},
year = {2004}
}