Z'graggen, J. (1980). A comparative word list of the Mabuso languages, Madang Province, Papua New Guinea. Dept. of Linguistics.
Chicago-referens (17:e uppl.)Z'graggen, J.A. A Comparative Word List of the Mabuso Languages, Madang Province, Papua New Guinea. Canberra: Dept. of Linguistics, 1980.
MLA-referens (9:e uppl.)Z'graggen, J.A. A Comparative Word List of the Mabuso Languages, Madang Province, Papua New Guinea. Dept. of Linguistics, 1980.
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