Ruff, Joy Naomi. 2005. Phonology of Lagwan (Logone-Birni Kotoko). SIL Yaounde. (unpublished).
@unpublished{1406_kot,
author = {Ruff, Joy Naomi},
publisher = {SIL Yaounde},
title = {Phonology of Lagwan (Logone-Birni Kotoko)},
year = {2005}
}