Harvey, David, 1935-, author
Johns Hopkins University Press, 1973
Buku Teks
Abdelkader, Deina, author
International institute of islamic thought, 2000
Buku Teks
Zaim Saidi, author
Piramedia , 2006
Buku Teks
Wright, Burton, author
W.B. Saunders, 1978
Buku Teks
Abadinsky, Howard, author
Prentice-Hall, 1979
Buku Teks