van den Heuvel, Wilco. 2006. Biak, Description of an Austronesian Language of Papua. (Doctoral dissertation, University of Leiden).
@phdthesis{sinnemakizeromarking-Heuvel2006, author = {van den Heuvel, Wilco}, school = {University of Leiden}, series = {LOT publications}, title = {Biak, Description of an Austronesian Language of Papua}, year = {2006} }