APA Style
RANGKUTI HASIBUAN, Sofia. (1998).
English serial 1: economics .
Jakarta:
Djambatan.
Chicago Style
RANGKUTI HASIBUAN, Sofia.
English serial 1: economics.
Jakarta:
Djambatan,
1998.
Text.
MLA Style
RANGKUTI HASIBUAN, Sofia.
English serial 1: economics.
Jakarta:
Djambatan,
1998.
Text.
Turabian Style
RANGKUTI HASIBUAN, Sofia.
English serial 1: economics.
Jakarta:
Djambatan,
1998.
Print.