Williams, R. S. (1998). Performance management: Perspectives on employee performance. International Thomson Business Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Richard S. Performance Management: Perspectives on Employee Performance. London: International Thomson Business Press, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliams, Richard S. Performance Management: Perspectives on Employee Performance. International Thomson Business Press, 1998.
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