Tapp, A. (2012). Principles of Direct and Database Marketing: A Digital Orientation (4th.). Pearson.
Chicago Style (17. basım) AtıfTapp, Alan. Principles of Direct and Database Marketing: A Digital Orientation. 4th. Noida: Pearson, 2012.
MLA (9th ed.) AtıfTapp, Alan. Principles of Direct and Database Marketing: A Digital Orientation. 4th. Pearson, 2012.
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