Gaya APA

Wahyudi, S. et al (2015). Stupid Marketing : "Only Stupid Marketing Keep Learning" (Ed. 1). Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Wahyudi, Sandy. et al. "Stupid Marketing : "Only Stupid Marketing Keep Learning"". Ed. 1 Jakarta: PT Gramedia Pustaka Utama, 2015. Text.