Parrish, Cecile
Monash University : Centre of Southeast Asian Studies, [Date of publication not identified]
Buku Teks
compiled by Herman C. Kemp
KITLV Press, 1998
Buku Referensi
Asia-Pacific Centre of Education for International Understanding
APCEIU. SEAMO, SEAMO INNOTECH, and SEAMO SPAFA, 2010
Buku Referensi
Steinberg, David J. (David Joel)
Oxford University Press, 1971
Buku Teks
King, John Kerry
Macmillan, 1959
Buku Teks