Gaya APA
Kotler, P. (1991).
Marketing management analysis,planning,implementation,& control (ed.7).
United States Of America:
Prentice-Hall, Inc..
Gaya MLA
Kotler, Philip..
"Marketing management analysis,planning,implementation,& control".
ed.7
United States Of America:
Prentice-Hall, Inc.,
1991.
Teks.