Gaya APA
Foster, T, R, V. (2002).
How to be better at.. Customer care: memberika perhatian kepada pelanggan .
Jakarta:
Elek Media Komputindo.
Gaya MLA
Foster, Timoty, R, V.
"How to be better at.. Customer care: memberika perhatian kepada pelanggan".
Jakarta:
Elek Media Komputindo,
2002.
Text.