Gaya APA
Armistead, Colin G., Clark, Graham. (2002).
Customer Service and Support (Layanan dan Dukungan kepada Pelanggan) .
PT Elex Media:
Longman Group UK.
Gaya Chicago
Armistead, Colin G., Clark, Graham.
Customer Service and Support (Layanan dan Dukungan kepada Pelanggan).
PT Elex Media:
Longman Group UK,
2002.
Texts.
Gaya MLA
Armistead, Colin G., Clark, Graham.
Customer Service and Support (Layanan dan Dukungan kepada Pelanggan).
PT Elex Media:
Longman Group UK,
2002.
Texts.
Gaya Turabian
Armistead, Colin G., Clark, Graham.
Customer Service and Support (Layanan dan Dukungan kepada Pelanggan).
PT Elex Media:
Longman Group UK,
2002.
Texts.