Berger, Peter L., author
Penguin Books, 1977
Buku Teks
Brown, J.A.C. (James Alexander Campbell), 1911-1964, author
Watts & Co, 1946
Buku Teks
Patai, Raphael, author
Hatherleigh Press, 2002
Buku Teks
Patai, Raphael
Recovery Resources Press, 2007
Buku Teks
Puchta, Herbert
Cambridge University Press, 2010
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