Messel, H., author
Pergamon Press, 1979
Buku Teks
Livingston, John Leslie, author
McGraw-Hill, 1970
Buku Teks
edited by Howard Newby
John Wiley & Sons, 1978
Buku Teks
Nasr, Seyyed Hossein, author
Routledge, 2008
Buku Teks
edited by George P. Stein, Agnes Stein
Prentice-Hall, 1973
Buku Teks