Brett, Richard
[Port Moresby : Department of Information and Extension Services and the] Summer Institute of Linguistics, 1962
Buku Klasik
Lundman, Richard J.
Holty,Rinchart and Winston, 1980
Buku Teks
Maitland, F.W.
Russel & Russell, 1885
Buku Teks
Reiss, Albert J.
Yale University Press, 1971
Buku Teks
Varwell, Dennis W.P.
MacDonald and Evans, 1978
Buku Teks