Gaya APA
Kotler, P., Amstrong, G. (1997).
Dasar-dasar pemasaran: principles of marketing jl.1 (7).
Jakarta:
Prenhallindo.
Gaya MLA
Kotler, Philip., Amstrong, Gary.
"Dasar-dasar pemasaran: principles of marketing jl.1".
7
Jakarta:
Prenhallindo,
1997.
Text.