william B.Martin, d. Quality customer service: Cara jitu memikat hati pelanggan. PPM.
Chicago Style (17th ed.) Citationwilliam B.Martin, dkik. Quality Customer Service: Cara Jitu Memikat Hati Pelanggan. PPM.
MLA (8th ed.) Citationwilliam B.Martin, dkik. Quality Customer Service: Cara Jitu Memikat Hati Pelanggan. PPM.
Warning: These citations may not always be 100% accurate.