1
by Meltzoff
Published 1998
2
by Zikmund
Published 2010
3
Published 2008
4
by Babbie
Published 2008
5
by Easterby-Smith
Published 2008
6
by WIMMER
Published 2011
7
by RUDESTAM
Published 2007
8
by Ramon y Cajal
Published 1999
9
by Fitzgerald-Hayes
Published 2010
10
by Kor Liew Kee
Published 2009
11
by Rozakis
Published 2007
12
by Neuman
Published 2009
13
by Domholdt
Published 2011
14
by Saunders
Published 2009
15
by Jesson
Published 2011
16
by Lillis
Published 2010
17
by Blumberg
Published 2011
18
by Bell
Published 2010
19
by Hopkins
Published 2008
20
by Breach
Published 2009