Gaya APA
Ardianto, J.
(2015).
177 Problem Solving Of Direct Marketing
(
Cet. 1.)
.
Yogyakarta:
FlashBooks.
Gaya MLA
Ardianto, Jony.
"177 Problem Solving Of Direct Marketing".
Cet. 1.
Yogyakarta:
FlashBooks,
2015.
Text.