Mehta, Kalyani K.
Springer, 2012
eBooks
Hill, Charles W. L., author
McGraw-Hill, 2012.
Buku Teks
Philip Kotler...[et al]
Prentice-Hall, 1996
Buku Teks
Putti, Joseph M., author
McGraw-Hill, 1998
Buku Teks
edited by Mohammad Halib and Tim Huxley
Tauris Academic Studies, 1986
Buku Teks