R, S. R. (1988). Sales Management: Decisions, Strategies And Cases Richard R. Still, Edward W. Cundiff And Norman A.p.govani. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रR, STILL. Richard. Sales Management: Decisions, Strategies And Cases Richard R. Still, Edward W. Cundiff And Norman A.p.govani. Prentice-Hall, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रR, STILL. Richard. Sales Management: Decisions, Strategies And Cases Richard R. Still, Edward W. Cundiff And Norman A.p.govani. Prentice-Hall, 1988.
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