Gaya APA
Siegler, E, L, F, W., Tjiptono, F. (2005).
Prinsip-Prinsip Total Quality Service ( TQS ) (5 ed).
Yogyakarta:
Andi Yogyakarta.
Gaya MLA
Siegler, Eugina, L.,Whitney,, Fay, W.., Tjiptono, Fandy.
"Prinsip-Prinsip Total Quality Service ( TQS )".
5 ed
Yogyakarta:
Andi Yogyakarta,
2005.
Text.