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Howe, K. R., Robert C. Kiste, Brij V. Lal, eds. (1994). Tides of History: The Pacific Islands in the Twentieth Century. Honolulu: University of Hawaii Press. ISBN 0-8248-1597-1.
King, David et al. (1982). Papua New Guinea Atlas: A Nation in Transition. Bathurst, Australia: R. Brown and the University of Papua New Guinea. ISBN 0-909197-14-8.
Moore, Clive (2003). New Guinea: Crossing Boundaries and History. Honolulu: University of Hawaii Press. ISBN 0-8248-2485-7.
Ryan, Peter, ed. (1972). Encyclopedia of Papua New Guinea. 3 volumes; Vol I: A - K, maps, black and white illustrations, xv + 588pp. Vol II: l - Z, maps, black and white illustrations, 589-1231pp. Vol III: Index, folding colour map in rear pocket, map, colour illustration, v + 83pp. Carlton, Australia: Melbourne University Press. ISBN 978-0-522-84025-4.
