Gaya APA

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

Gaya Chicago

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

Gaya MLA

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

Gaya Turabian

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