Cohen, C. (1995). Panduan sekretaris profesional. Halirang.
Chicago Style (17th ed.) CitationCohen, Cary. Panduan Sekretaris Profesional. Halirang, 1995.
MLA (8th ed.) CitationCohen, Cary. Panduan Sekretaris Profesional. Halirang, 1995.
Warning: These citations may not always be 100% accurate.