Brett, Richard
Port Moresby : The Summer Istitute of Linguistic, 1961.
Buku Teks
Barrett, Charles
William Heinemann, 1954
Buku Teks
Goldman, Laurence
Tavistock, 1983
Buku Teks
Wares, Alan C.
Santa Ana, 1968
Buku Teks
Franklin, Karl J
Australasian Medical , 1972
Buku Teks