Lai, Nam Chen
Singapore University, 1981
Buku Teks
Parrish, Cecile, author
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), author
Oxford University Press, 1971
Buku Teks