Rao, T. (2002). 360 degree feedback and performance management system Vol Two. Excel.
Chicago-čujuhus (17. p.)Rao, T. 360 Degree Feedback and Performance Management System Vol Two. New Delhi: Excel, 2002.
MLA-čujuhus (9. p.)Rao, T. 360 Degree Feedback and Performance Management System Vol Two. Excel, 2002.
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