McGraw-Hill, 1992
Buku Teks
Larsson, Gerhard, author
Avery, 1993
Buku Teks
edited by Yap Kioe Sheng and Moe Thuzar
Institute of South East Asia Studies, 2012
eBooks
Academic Press, 1983
Buku Teks
Russell, R. Robert
New York, N.Y. John Wiley c.1979,
Buku Teks