APA Style
Rangkuti-Hasibuan, Sofia Haji. (1990).
English for specific purposes agriculture. .
Jakarta:
gramedia pustaka utama.
Chicago Style
Rangkuti-Hasibuan, Sofia Haji.
English for specific purposes agriculture..
Jakarta:
gramedia pustaka utama,
1990.
Text.
MLA Style
Rangkuti-Hasibuan, Sofia Haji.
English for specific purposes agriculture..
Jakarta:
gramedia pustaka utama,
1990.
Text.
Turabian Style
Rangkuti-Hasibuan, Sofia Haji.
English for specific purposes agriculture..
Jakarta:
gramedia pustaka utama,
1990.
Print.