1
by Kotler, Philip
Published 2006
2
3
by Cortada, James W.
Published 1993
4
5
by Jain, Subhash C.
Published 1997
6
7
8
9
by Livingstone, J. M., 1925-
Published 1976
10
by Buss, John H.
Published 1991
11
Published 1994
12
13
by Day, George S.
Published 1986
14
15
by Yeshin, Tony
Published 1995
16
by Cohen, William A.
Published 1988
17
18
Published 1990
19
by Kotler, Philip
Published 2000
20