Christol, Carl Quimby
Kluwer Law and Taxation , 1991
Buku Teks
editor, John L. Esposito; Abdulaziz Sachedina, John O. Voll, associate editors
Oxford University Press, 2004
Buku Referensi
edited by Stephanie Abraham Hirsh and Philip Bacon
Harcourt Brace Jovanovich, 1988
Buku Teks
Wallbank, T. Walter
Scott, Foresman, 1965
Buku Teks
Cook, Arthur N.
Littlefield Adams, 1969
Buku Teks