Gaya APA
Saffel, D, C. et al
(2010).
Civics Today: Citizenship, Economics, and You
.
Palangkaraya:
McGRAW HILL _2.
Gaya MLA
Saffel, David, C.. et al.
"Civics Today: Citizenship, Economics, and You".
Palangkaraya:
McGRAW HILL _2,
2010.
Buku Teks.