Shaw, Bernard, 1856-1950
Penguin Books, 1934
Buku Teks
Siegel, James T., 1937-
University of California Press, 1969
Buku Teks
Daman, Jan
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Buku Teks
Huber, Carlo
The Council for Research Values and Philosophy , 2001
Buku Teks
Lari, Sayyid Mujtaba Musavi
Foundation of Islamic Cultural Propagation in The World, 1993
Buku Teks