1
2
Published 2008
3
by Falkner
Published 2008
4
Published 1993
5
6
by Abu Bakar Yang
Published 2015
7
Published 2016
8
by Mohmadisa Hashim
Published 2010
9
Published 2010
10
11
12
13
by Crump
Published 1991
14
Published 2001
15
Published 1997
16
by Piasecki
Published 1955
17
by قرضاوي
Published 2001
18
by Abdullah Ahmad Said
Published 2001
19
by Barrett
Published 1991
20
by Portney
Published 1992