Gaya APA

GARTSIDE, L, . (1989). MODERN BUSINESS CORRESPONDENCE (CET. 1). JAKARTA: BINA RUPA AKSARA PUBLISHER.

Gaya MLA

GARTSIDE, L, . "MODERN BUSINESS CORRESPONDENCE". CET. 1 JAKARTA: BINA RUPA AKSARA PUBLISHER, 1989. Prodi S1 Manajemen.