Yang, K. (2008). Voice of the customer: Capture and analysis. McGraw-Hill.
Dyfyniad Arddull ChicagoYang, Kai. Voice of the Customer: Capture and Analysis. New York: McGraw-Hill, 2008.
Dyfyniad MLAYang, Kai. Voice of the Customer: Capture and Analysis. McGraw-Hill, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.