Gaya APA
Jessica, S.
(2010).
The Art of Building Relation with People
(
Cet.1)
.
Yogyakarta:
Tiara Pustaka.
Gaya MLA
Jessica, Sarah.
"The Art of Building Relation with People".
Cet.1
Yogyakarta:
Tiara Pustaka,
2010.
Text.