1
by Biech
Published 1994
2
by Yeoh
Published 1993
3
by Logothetis
Published 1992
4
by Puri
Published 1995
5
by Williams
Published 1994
6
by Edvardsson
Published 1994
7
by Bank
Published 1992
8
9
by Cali
Published 1992
10
11
by Mohd. Yusof Hj. Othman
Published 2000
12
by Knouse
Published 1995
13
by Rushami Zien Yusoff
Published 2005
14
15
by Andersen
Published 2006
16