Goldscheider, Calvin, author
Litle Brown, 1971
Buku Teks
edited by D. V. Glass and Roger Revelle
Edward Arnold, 1972
Buku Teks
Saw, Swe Hock
University of Pensylvania Press, 1970
Buku Teks
Halli, Shiva S., author
Plenum Press, 1992
Buku Teks
United Nations
United Nations, 1986
Buku Teks