APA (7th ed.) Citation

Rangkuti-Hasibuan, H. S. (1990). English for specific purposes: Agriculture. Gramedia Pustaka Utama.

Chicago Style (17th ed.) Citation

Rangkuti-Hasibuan, H. Sofia. English for Specific Purposes: Agriculture. Gramedia Pustaka Utama, 1990.

MLA (8th ed.) Citation

Rangkuti-Hasibuan, H. Sofia. English for Specific Purposes: Agriculture. Gramedia Pustaka Utama, 1990.

Warning: These citations may not always be 100% accurate.