PorterL. W.A study of perceived need satisfaction in bottom and middle-management jobs. Journal of Applied Psychology, 1962, 46, 375–384.
2.
TimmD.SørensenP. F.Jr.StraussJ.BabcockR.The impact of Management by Objectives on Maslow's need hierarchy: An empirical study. Psychological Reports, 1977, 40, 71–74.