Gaya APA
Sigit, S. et al
(2014).
Complain Topedia The Art Of Complaint Handling
(
Edisi 1)
.
Yogyakarta:
Andi Offset.
Gaya MLA
Sigit, Suyantoro. et al.
"Complain Topedia The Art Of Complaint Handling".
Edisi 1
Yogyakarta:
Andi Offset,
2014.
Text.