Asian and Pacific Development Administration Centre, 1980
Buku Teks
resources for the future, 1981
Buku Teks
United Nations Development Programme, 1980
Buku Teks
Long, Norman, author
Tavistock Publication, 1980
Buku Teks
by Economic and Social Comission for Asia and the Pacific, United Nations
United Nations, 1983
Buku Teks