Gaya APA
Alam, . (2011).
Economics 3B for Senior High School Grade XII Semester 2 (Cet. 1).
JAKARTA:
ESIS THE INNOVATIVE LEARNING.
Gaya MLA
Alam, .
"Economics 3B for Senior High School Grade XII Semester 2".
Cet. 1
JAKARTA:
ESIS THE INNOVATIVE LEARNING,
2011.
Chart.