1
by Sichel, Daniel E.
Published 1997
2
by Mann, Catherine L.
Published 2001
3
Published 2003
4
Published 2003
5
Published 1999
6
7
Published 2003
8
by Kamel, Sherif
Published 2003
9
10
by Klosterboer, Larry
Published 2008
11
12
by Abu Bakar Munir
Published 1999
13
Published 2002
14
Published 2005
15
16
17
18
19
20
Published 1995