STOKES THOMAS F. (1980). TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. TARAPOREVALA PUBLICATIONS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSTOKES THOMAS F. TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. BOMBAY: TARAPOREVALA PUBLICATIONS, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSTOKES THOMAS F. TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. TARAPOREVALA PUBLICATIONS, 1980.
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