1
by Lindner, Douglas K
Published 1999
2
by Denbigh, Philip.
Published 1998
3
by Ifeachor, Emmanuel C.
Published 2002
4
by Oppenheim, Alan V.,, 1937-.
Published 1999
5
by Kamen, Edward W.
Published 1997
6
by Ifeachor, Emmanuel C.
Published 1993
7
by Ahmad Fadzil Mohamad Hani.
Published 1996
8
by Syed Abdul Rahman Al-Attas.
Published 2008