Office of The Coordinating Minister for Social Welfare and Poverty Alleviation, 1998
Buku Referensi
Berrigan, Frances J., author
UNESCO, 1977
Buku Teks
Ichimura, Shin`ichi, 1925-, author
World Scientific, 2015
Buku Teks
Hal Hill, author
ISEAS, 2001
eBooks
edited by David F. Walker
John Wiley & Sons, 1980
Buku Teks