7Locke,E.A.&Henne,D.Work Motevation Theories.lnC.L. Cooper and I.T.Robertson.lnternational Reviews of industrial and Organizational Psychology.1968, 1:67.
8Locke.What 15 Jobsatisfaction,Organization Behaviorand Human Performance.Journal of Applied Psychology, 1969 (4): 309-336.