Gaya APA
Economics: Pengantar Uraian II. (1977).
Jakarta:
Viva Study Club.
Gaya Chicago
Economics: Pengantar Uraian II.
.
Jakarta:
Viva Study Club,
1977.
.
Gaya MLA
Economics: Pengantar Uraian II.
.
Jakarta:
Viva Study Club,
1977.
.
Gaya Turabian
Economics: Pengantar Uraian II.
Jakarta:
Viva Study Club,
1977.
.