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
Smart, Huw
Oxford University Press, 2006
Buku Referensi
Backstrom, Charles H.
Northwestern University Press, 1963
Buku Teks