Singh, U. (2008). Time management: A study of HRD managers. Kalpaz.
Chicago-čujuhus (17. p.)Singh, U.B. Time Management: A Study of HRD Managers. Delhi: Kalpaz, 2008.
MLA-čujuhus (9. p.)Singh, U.B. Time Management: A Study of HRD Managers. Kalpaz, 2008.
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