APA (7th ed.) Citation

EVANS, D. W. (1989). Improving english skills. Binarupa Aksara.

Chicago Style (17th ed.) Citation

EVANS, Desmond W. Improving English Skills. Jakarta: Binarupa Aksara, 1989.

MLA (9th ed.) Citation

EVANS, Desmond W. Improving English Skills. Binarupa Aksara, 1989.