Gaya APA
Drs.Alam S.,MM. (2010).
Economics 1A For senior high school grade X semester 1 .
jakarta:
Apress.
Gaya Chicago
Drs.Alam S.,MM.
Economics 1A For senior high school grade X semester 1.
jakarta:
Apress,
2010.
Text.
Gaya MLA
Drs.Alam S.,MM.
Economics 1A For senior high school grade X semester 1.
jakarta:
Apress,
2010.
Text.
Gaya Turabian
Drs.Alam S.,MM.
Economics 1A For senior high school grade X semester 1.
jakarta:
Apress,
2010.
Print.