Gaya APA
PUTRA, S, O., ROZIKIN, M, Z.
(2012).
ENGLISH FOR ECONOMICS
.
Malang:
BANYUMEDIA PUBLISHING.
Gaya MLA
PUTRA, SUATMO, OANTJA., ROZIKIN, M., ZAINUR.
"ENGLISH FOR ECONOMICS".
Malang:
BANYUMEDIA PUBLISHING,
2012.
Art Original.