21
22
23
by Bachtiar Djamily
Published 1973
24
by Andaya
Published 2008
25
by Davis
Published 1995
26
27
by Haacke
Published 2003
28
Published 2003
29
30
by Miettinen
Published 1992
31
by Abusa
32
by Khoo
Published 1996
33
34
35
by Haacke, Jurgen
Published 2005
36
by Hurst
Published 1990
37
Published 2005
38
by Tan
Published 1995
39
by Haacke
Published 2003
40
by Williamson
Published 2004