APA Style

Tschohl, John, Franzmeier, Steve. (2003). Achieving excellence through customer service = unggul bersaing melalui layanan pelanggan . Jakarta: Gramedia Pustaka Utama.

Chicago Style

Tschohl, John, Franzmeier, Steve. Achieving excellence through customer service = unggul bersaing melalui layanan pelanggan. Jakarta: Gramedia Pustaka Utama, 2003. Text.

MLA Style

Tschohl, John, Franzmeier, Steve. Achieving excellence through customer service = unggul bersaing melalui layanan pelanggan. Jakarta: Gramedia Pustaka Utama, 2003. Text.

Turabian Style

Tschohl, John, Franzmeier, Steve. Achieving excellence through customer service = unggul bersaing melalui layanan pelanggan. Jakarta: Gramedia Pustaka Utama, 2003. Print.