41
42
by Johnson, Ron
Published 1998
43
by Backman, Michael, 1967-
Published 1999
44
by Kotler, Philip
Published 2000
45
by De Mente, Boye
Published 1989
46
by Austin, James E.
Published 1990
47
48
Published 2005
49
by Dauphinais, G. William
Published 2000
50
by Yeoh, Michael
Published 1995
51
Published 1994
52
by Whitehill, Arthur Murray
Published 1991
53
by Yeoh, Michael
Published 2003
54
Published 1994
55
by Hunt, Brian
Published 1995
56
Published 1991
57
by Imai, Masaaki
Published 1986
58
Published 2001
59
by Hindle, Tim
Published 1993
60
Published 1989