APA Style
Bruce, A., Langdon, K. (2004).
Mengutamakan Pelanggan = Putting Customers First (Cet.1).
Yogyakarta:
Zenith Publiser.
MLA Style
Bruce, Andy., Langdon, Ken.
"Mengutamakan Pelanggan = Putting Customers First".
Cet.1
Yogyakarta:
Zenith Publiser,
2004.
Text.