^ abHolzknecht, Susanne (1989). The Markham Languages of Papua New Guinea. Pacific Linguistics. ISBN0-85883-394-8.
^ Susanne Holzknecht (1989). The Markham Languages of Papua New Guinea. Pacific Linguistics. ISBN0-85883-394-8.
Holzknecht, Susanne (2001). "Number and Person in the Duwet Language of Papua New Guinea." In Andrew Pawley, Malcolm Ross, and Darrell Tryon, eds., The Boy from Bundaberg: Studies in Melanesian Linguistics in Honour of Tom Dutton, 175-191. Canberra: Pacific Linguistics.