APA Style

RANGKUTI, Freddy. (2013). Customer Service Satisfaction & Call Center Berdasarkan ISO 9001 . Jakarta: Gramedia Pustaka Utama.

Chicago Style

RANGKUTI, Freddy. Customer Service Satisfaction & Call Center Berdasarkan ISO 9001. Jakarta: Gramedia Pustaka Utama, 2013. .

MLA Style

RANGKUTI, Freddy. Customer Service Satisfaction & Call Center Berdasarkan ISO 9001. Jakarta: Gramedia Pustaka Utama, 2013. .

Turabian Style

RANGKUTI, Freddy. Customer Service Satisfaction & Call Center Berdasarkan ISO 9001. Jakarta: Gramedia Pustaka Utama, 2013. .