Cruz, Jose
Cornell University South Asia Program (SEAP), 1990
Buku Teks
Daus, Ronald, author
ISEAS, 1989
Buku Teks
Montes, Manuel F., author
Institute of Southeast Asian Studies , 1998
Buku Teks
Osborne, Milton, author
Allen& Unwin , 2000
Buku Teks
edited by Trevor Ling
ISEAS, 1993
Buku Teks