Gaya APA
Alam, .
(2011).
ECONOMICS 2B : for Senior High School Grade XI Semester 2
(
Cet.1)
.
JAKARTA:
Esis.
Gaya MLA
Alam, .
"ECONOMICS 2B : for Senior High School Grade XI Semester 2".
Cet.1
JAKARTA:
Esis,
2011.
Text.