Gaya APA
Byrns, R, T., Stone, G, W. (1984).
Micro Economic, Secon Edition (2nd Ed.).
London:
Scott, Foresman and Company.
Gaya MLA
Byrns, Ralph, T.., Stone, Gerald, W..
"Micro Economic, Secon Edition".
2nd Ed.
London:
Scott, Foresman and Company,
1984.
Text.