Gaya APA
Hasibun, Sofia Rangkuti. (1990).
English for specific purposes: agriculture (Cet.1).
Jakarta:
PT Gramedia Pustaka Utama.
Gaya Chicago
Hasibun, Sofia Rangkuti.
English for specific purposes: agriculture.
Cet.1
Jakarta:
PT Gramedia Pustaka Utama,
1990.
Text.
Gaya MLA
Hasibun, Sofia Rangkuti.
English for specific purposes: agriculture.
Cet.1
Jakarta:
PT Gramedia Pustaka Utama,
1990.
Text.
Gaya Turabian
Hasibun, Sofia Rangkuti.
English for specific purposes: agriculture.
Cet.1
Jakarta:
PT Gramedia Pustaka Utama,
1990.
Print.