Du, Jingyi. 2010. Towards a Grammar of the Usen Dialect of the Barok language New Ireland, Papua New Guinea. (Doctoral dissertation, LaTrobe University; xxiv+367pp.)
@phdthesis{gDuBarok,
author = {Du, Jingyi},
pages = {xxiv+367},
school = {LaTrobe University},
title = {Towards a Grammar of the Usen Dialect of the Barok language New Ireland, Papua New Guinea},
year = {2010}
}