1. Alder, W.F. 1922. The isle of vanishing men: A narrative of adventure in cannibal-land. The Century Co., New York.
2. Alder, W.F. and E. Bailey 1921. Six months among the head-hunters. Wide World Magazine 47:205-210.
3. Austen, L. 1923. The Tedi River district of Papua. The Geographical Journal 62(5):335-349. doi.org/10.2307/1780585.
4. Austen, L. 1926. Recent explorations in the north-west district of Papua. The Geographical Journal 67(5):434-441. doi.org/10.2307/1782209.
5. Bain, J.H.C., H.L. Davies, P.D. Hohnen, R.J. Ryburn, I.E. Smith, R. Grainger, R.J. Tingey and M.R. Moffat 1972. Geology Papua New Guinea. Map. 1:1,000,000 scale. Bureau of Mineral Resources, Geology and Geophysics, Canberra; Department of Lands, Surveys and Mines, Port Moresby.