Martin, W. B. (2004). Quality customer service: Cara jitu memikat hati pelanggan. PPM.
Chicago Style CitationMartin, William B. Quality Customer Service: Cara Jitu Memikat Hati Pelanggan. PPM, 2004.
MLA CitationMartin, William B. Quality Customer Service: Cara Jitu Memikat Hati Pelanggan. PPM, 2004.
Warning: These citations may not always be 100% accurate.