edited by Albert H. Yee
Pergamon Press, 1995
Buku Teks
May, Reinhard
Routledge, 1996
Buku Teks SO
Rodgers, Beth L.
Lippincott Williams & Wilkins, 2005
Buku Teks SO
edited by Wendy Dobson and Chia Siow Yue
International Development Research Centre and Institute of Southeast Asian Studies, 1997
Buku Teks
Kemp, Geoffrey
Brookings Institution Press, 1997
Buku Teks