Gaya APA
Dernburg, T, F. (1985).
Macro Economics - Concepts, Thoeries and Policies (7).
Singapura:
McGraw Hill International.
Gaya MLA
Dernburg, Thomas, F..
"Macro Economics - Concepts, Thoeries and Policies".
7
Singapura:
McGraw Hill International,
1985.
Text.