edited by Philip Collins
Macmillan Press, 1983
Buku Teks
Ganis Harsono, author
Universit of Queensland Press, 1977
Buku Teks
Gerges, Fawaz A, author
Cambridge University Press, 2005
Buku Teks
Clyde, Paul H. (Paul Hibbert), author
Prentice-Hall, 1953
Buku Teks
Morgenstern, Oskar
Princeton University Press, 1963
Buku Teks