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}
}