Gaya APA
Hasibuan, D, H, S, R.
(1987).
English For Specific Purpose LAW
.
Yogyakarta:
PT. Gramedia Pustaka Utama.
Gaya MLA
Hasibuan, Dra., H., Sofia, R..
"English For Specific Purpose LAW".
Yogyakarta:
PT. Gramedia Pustaka Utama,
1987.
Text.