Gaya APA
Soenarno, A., Cholil, M. (2014).
Complain Topedia The Art of Complaint Handling (Ed 1).
Yogyakarta:
Penerbit Andi.
Gaya MLA
Soenarno, Adi., Cholil, Mohammad.
"Complain Topedia The Art of Complaint Handling".
Ed 1
Yogyakarta:
Penerbit Andi,
2014.
Text.