editors: Grant Harman
UNESCO, 1991
Buku Teks
Rohan Gunaratna, Stefanie Kam.
Imperial College Press, 2016
Buku Teks
Asia-Pacific Center, 1992
Buku Teks
Capie, David
ISEAS, 2007
Buku Referensi
United Nations Educational, Scientific and Cultural Organization (UNESCO)
UNESCO, 1984
Buku Teks