Gaya APA
SAMUELSON, Paul A. (1980).
Economics (ELEVENTH EDITION).
Amerika:
Mc Graw Hill.
Gaya Chicago
SAMUELSON, Paul A.
Economics.
ELEVENTH EDITION
Amerika:
Mc Graw Hill,
1980.
FAKULTAS EKONOMI.
Gaya MLA
SAMUELSON, Paul A.
Economics.
ELEVENTH EDITION
Amerika:
Mc Graw Hill,
1980.
FAKULTAS EKONOMI.
Gaya Turabian
SAMUELSON, Paul A.
Economics.
ELEVENTH EDITION
Amerika:
Mc Graw Hill,
1980.
FAKULTAS EKONOMI.