Gaya APA
LESIKAR, R, V. (1980).
BUSINESS COMMUNICATION THEORY AND APPLICATION (Fourth Edition).
Homewood,Illinois:
RICHARD D. IRWIN INC..
Gaya MLA
LESIKAR, Raymond, V..
"BUSINESS COMMUNICATION THEORY AND APPLICATION".
Fourth Edition
Homewood,Illinois:
RICHARD D. IRWIN INC.,
1980.
Textbook.