Hughes, Tom Eames.
Institute of Southeast Asian Studies, 1980
Buku Teks
Dickie, Phil
University of Queensland Press, 1998
Buku Teks
Fitzgerald, C. P.
Cresset Press, 1953
Buku Teks
Fitzgerald, Ross
University of Queensland Press, 1989
Buku Teks
Richardson, Joanna
The British Council by Longmans, Green, 1960
Buku Teks