Gaya APA
IPS Ekonomi Koperasi 3. (1987).
Upper Saddle River, NJ:
Penebar Plus.
Gaya Chicago
IPS Ekonomi Koperasi 3.
.
Upper Saddle River, NJ:
Penebar Plus,
1987.
Text.
Gaya MLA
IPS Ekonomi Koperasi 3.
.
Upper Saddle River, NJ:
Penebar Plus,
1987.
Text.
Gaya Turabian
IPS Ekonomi Koperasi 3.
Upper Saddle River, NJ:
Penebar Plus,
1987.
Print.