Gaya APA

Gomulya, B., Team, B, G. (2015). The 5 Principles of Excellent Execution . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Gomulya, Berny., Team, Business, Growth. "The 5 Principles of Excellent Execution". Jakarta: Gramedia Pustaka Utama, 2015. Text.