Hitt, Michael A., author
Thomson, South-Western, 2005
Buku Teks
Waters, Malcolm
Rontledge, 1995
Buku Teks
Wiarda, Howard J., author
Hartcourt College Publishers, 2001
Buku Teks
editor, Leo Suryadinata
Institute of Southeast Asian Studies, 2000
Buku Teks
Paul Kirkbride
John Wiley & Sons, 2001
Buku Teks