1
by Bell
Published 2002
2
by Mace
Published 2007
3
by Stewart
Published 2008
4
Published 2007
5
by نجاتي, دكتور
Published 1993
6
7
Published 2016
8
by Kardas, 1949-
Published 2014
9
by Papalia
Published 1985
10
by Carlson, 1942-
Published 1988
11
by Beck, 1931-
Published 1992
12
by Wortman
Published 1992
13
Published 1994
14
by Stuart-Hamilton
Published 1994
15
Published 1993
16
Published 1997
17
by Wan Hussain Azmi Abdul Kadir
Published 1994
18
by Mohd. Janib Johari
Published 2001
19
by Tajfel
Published 1948
20
by Al-Attas
Published 2002