APA (7th ed.) Citation

GARTSIDE, L. (1989). Modern business correspondence.-- ed.4. Binarupa Aksara.

Chicago Style (17th ed.) Citation

GARTSIDE, L. Modern Business Correspondence.-- Ed.4. Jakarta: Binarupa Aksara, 1989.

MLA (9th ed.) Citation

GARTSIDE, L. Modern Business Correspondence.-- Ed.4. Binarupa Aksara, 1989.