Gaya APA
Grolier Business Library : Delivering Customer Service. (1999).
Hongkong:
Glorier International Inc..
Gaya Chicago
Grolier Business Library : Delivering Customer Service.
.
Hongkong:
Glorier International Inc.,
1999.
.
Gaya MLA
Grolier Business Library : Delivering Customer Service.
.
Hongkong:
Glorier International Inc.,
1999.
.
Gaya Turabian
Grolier Business Library : Delivering Customer Service.
Hongkong:
Glorier International Inc.,
1999.
.