88. Whiting I. W. M., Reed S. W. Kwoma culture. — Oceania, 1938, N2.
89. Williams F. E. The Natives of the Purari delta. Port Moresby, 1924.
90. Williams F. E. Orokaiva magic. London, 1928.
91. Williams F. E. Orokaiva society. London, 1930.
92. Williams F. E. Natives of lake Kutubu, Papua. Port Moresby, 1940—1941.
93. Williams F. E. Papuans of the Trans-Fly. Oxford, 1969.
94. Williams M. The Stone Age islands. New Guinea today. New York, 1964.
95. The Story of Kupe. As ritten down by Himiona Kaamira (translated by Bruce Biggs). — Journal of Polynesian Society, 1957, N 3.