Gaya APA
m.pd.,, P, D, H, S.
(1979).
Intermediate Microeconomics and It's Application
.
illinois:
dryden press.
Gaya MLA
m.pd.,, Prof., Dr., H., Suyatno,.
"Intermediate Microeconomics and It's Application".
illinois:
dryden press,
1979.
Text.