1
by Bagenal, Timothy
Published 1990
2
by Bailey, Kenneth D.
Published 1984
3
by Peccei, Aurelio
Published 1977
4
Published 1987
5
by Hashim Yeop A. Sani
Published 1980
6
by Lesikar, Raymond V.
Published 1981
7
Published 1990
8
by Dewey, John
Published 1980
9
by Dickinson, Duo
Published 1997
10
Published 1987
11
by Drucker, Peter F.
Published 1984
12
by Ricks, David A.
Published 1983
13
by Jamsa, Kris
Published 1989
14
by Foziah Johar
Published 1992
15
by Heddergot, Karl-Heinz
Published 1983
16
by Scharf, Peter
Published 1984
17
by Reid, William Arbuckle
Published 1978
18
Published 1977
19
by Babbie, Earl
Published 1990
20
by Azlan Khalili Shamsuddin
Published 1988