Source: de Vries and de Vries-Wiersma (1992)
de Vries, Lourens J. and Robinia de Vries-Wiersma. 1992. The morphology of Wambon of the Irian Jaya Upper-Digul area: With an introduction to its phonology. The Hague: Martinus Nijhoff.
de Vries, Lourens J. and Robinia de Vries-Wiersma. 1992. The morphology of Wambon of the Irian Jaya Upper-Digul area: With an introduction to its phonology. The Hague: Martinus Nijhoff.