Donohue, Mark and Roque, Lila San. 2002. I'saka: A Sketch Grammar of a Language of North- Central New Guinea. Canberra: Pacific Linguistics.
@book{ksi_donohue2002, author = {Donohue, Mark and Roque, Lila San}, publisher = {Canberra: Pacific Linguistics}, title = {I'saka: A Sketch Grammar of a Language of North- Central New Guinea}, year = {2002} }