Gaya APA
Kartajaya, H. (2015).
Marketing In Challenging Times: Entrepreneurship, Productivity, Creativity .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Kartajaya, Hermawan.
"Marketing In Challenging Times: Entrepreneurship, Productivity, Creativity".
Jakarta:
Gramedia Pustaka Utama,
2015.
Text.