Friesen, Lisa. 2002. Valence Change and Oroko Verb Morphology (Mbonge Dialect). (MA thesis, University of North Dakota; x+124pp.)
@mastersthesis{sFriesenOroko,
author = {Friesen, Lisa},
pages = {x+124},
school = {University of North Dakota},
title = {Valence Change and Oroko Verb Morphology (Mbonge Dialect)},
year = {2002}
}