Brown, Rajeswary Ampalavanar, author
Routledge, 2014
Buku Teks
Regional Energy Development Programme, 1989
Buku Teks
Baker & McKenzie, 1990
Buku Teks
edited by Theodore Panayotou
Agricultural Development Council, 1985
Buku Teks
Skinner, G. William, author
Cornell University Press, 1958
Buku Teks