Gaya APA

Rangkuti, Freddy. (). Customer service satisfaction& call centre berdasarkan Iso 9001 . Jakarta: Gramedia Pustaka Utama.

Gaya Chicago

Rangkuti, Freddy. Customer service satisfaction& call centre berdasarkan Iso 9001. Jakarta: Gramedia Pustaka Utama, . Non Fiksi.

Gaya MLA

Rangkuti, Freddy. Customer service satisfaction& call centre berdasarkan Iso 9001. Jakarta: Gramedia Pustaka Utama, . Non Fiksi.

Gaya Turabian

Rangkuti, Freddy. Customer service satisfaction& call centre berdasarkan Iso 9001. Jakarta: Gramedia Pustaka Utama, . Non Fiksi.