Retherford, Robert D., author
East West Center Press, 1985
Buku Teks
United Nations, 1987
Buku Teks
Cho, Lee-Jay, author
The Univ. of Hawaii Press, 1986
Buku Teks
United Nations
United Nations, 1983
Buku Teks
Henry, Louis, author
United Nations, 1980
Buku Teks