Miller, Jordan Y.
McGraw-Hill Book Company, Inc., 1961
Buku Teks SO
Weston, Michael
Routledge , 2001
Buku Teks SO
St. Martin?s Press, 1980
Buku Teks SO
St. Martin?s Press, 1978
Buku Teks SO
Parrish, Cecile
Monash University : Centre of Southeast Asian Studies, [Date of publication not identified]
Buku Teks SO