1
by Gray, S. J
Published 1990
2
3
by Walker, A. G.
Published 1995
4
Published 2007
5
by Paauwe, Jaap
Published 2004
6
by Axson, David a. J.
Published 2007
7
by Kim, W. Chan
Published 2005
8
Published 2002
9
10
by Green, G.D. (George Dennis)
Published 1997
11
Published 2004
12
by Armstrong, Michael, 1928-
Published 2006
13
Published 1994
14
Published 1994
15
by Skrabanich, Sharyn
Published 1993
16
by Huczynski, Andrzej
Published 2004
17
Published 2004
18
by Orna, Elizabeth
Published 1998
19
Published 1995
20
by Zaini Ujang
Published 1997