Rao, T. (2003). 360 Degree feedback and assessment & development centres Vol 1 (2nd.). Excel.
Chicago-čujuhus (17. p.)Rao, T. 360 Degree Feedback and Assessment & Development Centres Vol 1. 2nd. New Delhi: Excel, 2003.
MLA-čujuhus (9. p.)Rao, T. 360 Degree Feedback and Assessment & Development Centres Vol 1. 2nd. Excel, 2003.
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