Azhim, Ali Abdul
Rosda Offset, 1989
Buku Teks
U.S.A : Bowling Green U.S.A. Philosophy Documentation Center
Majalah, Jurnal, Buletin
Ujung Pandang : Hasanuddin University Press
Majalah, Jurnal, Buletin
edited by Beryl Logan
Routledge , 1996
Buku Teks
Koltun, Daniel S.
New York John Wiley & Sons 1988,
Buku Teks