Rendall, F. J., author
McGraw-Hill, 1983
Buku Teks
Wiggins, Gary, 1943-, author
McGraw-Hill, 1991
Buku Teks
Sastri, K.A. Nilakanta, author
University of Madras, 1946
Buku Teks
Ikeda, Daisaku, 1928-, author
International Bureau, [date of publication not identified]
Buku Teks
Bergson, Henri, author
Doubleday Anchor Books, 1956
Buku Teks