Gaya APA

John, T. (2003). ACHIEVING EXCELLENCE THROUGH CUSTOMER SERVICE; UNGGUL BERSAING MELALUI LAYANAN PELANGGAN . : .

Gaya MLA

John, TSCHOHL.. "ACHIEVING EXCELLENCE THROUGH CUSTOMER SERVICE; UNGGUL BERSAING MELALUI LAYANAN PELANGGAN". : , 2003. Text.