Armistead, C. G. (1999). Times Management Series: Customer service and support; Layanan dan dukungan kepada pelanggan. Saint Joseph's University.
Chicago Style (17th ed.) CitationArmistead, Colin G. Times Management Series: Customer Service and Support; Layanan Dan Dukungan Kepada Pelanggan. Saint Joseph's University, 1999.
MLA (8th ed.) CitationArmistead, Colin G. Times Management Series: Customer Service and Support; Layanan Dan Dukungan Kepada Pelanggan. Saint Joseph's University, 1999.
Warning: These citations may not always be 100% accurate.