edited by Gerald L. Mandell, John E. Bennett and Raphael Dolin
Churchill Livingstone, 1995
Buku Referensi
by Barbara Kozier ... [and others]
Prentice-Hall, 2004
Buku Teks SO
edited by Manfred E. Wolff
John Wiley & Sons, 1995
Buku Teks SO
edited by Mircea Eliade
Macmillan, 1987
Buku Referensi
Damask, A.C.
Academic Press, 1981
Buku Teks SO