1
2
by Freeman, Derek.
Published 1970
3
by Jones, L. W.
Published 2007
4
by Brosius, J. Pete
Published 1992
5
6
7
8
9
10
by Amde Sidik
Published 2007
11
by Mohd. Farid Linggi
Published 2002
12
by Parasin Bongkol
Published 2011
13
Published 2013
14
15
Published 1992
16
17
Published 1998
18
by Yong, Ooi Lin Carol
Published 2003
19
Published 2006
20
by Braun, Linda W.
Published 2007