Tench, Watkin
Angus and Robertson, 1962
Buku Teks
Cunningham, Chris
Kangaroo Press, 1996
Buku Teks
Curson, Peter, 1940-
New South Wales University Press, [Date of publication not identified]
Buku Teks
Winda Fitri Subekti
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1999
UI - Skripsi (Membership)
Parker, R.S., editor
Prentice Hall International, 1978
Buku Teks