Gaya APA
Hartati, R, S.
(2003).
The customer's service quality at PT.Telkom Malang
.
Malang, Jatim:
UNMER.
Gaya MLA
Hartati, Ratih, Sri.
"The customer's service quality at PT.Telkom Malang".
Malang, Jatim:
UNMER,
2003.
Text.