Allyn and Bacon, 1966
Buku Teks
Holdren, John P.
California Institute of Technology , 1973
Buku Teks
Carey, Peter
University of Queensland, 1987
Buku Teks
Leaf, Murray J.
Columbia University Press, 1979
Buku Teks
Ross, Robert
Polity Press, 2008
Buku Teks