Huber, Carlo
The Council for Research Values and Philosophy , 2001
Buku Teks SO
Musavi Lari, Mujtaba
Foundation of Islamic Cultural Propagation in The World, 1993
Buku Teks SO
Murray, Margaret Alice
Oxford University Press, 1970
Buku Teks SO
White, David Manning
Macmillan, 1983
Buku Teks SO
Frazer, James George, Sir, 1854-1941
Macmillan, 1955
Buku Teks