LOCKE E. A., . (1991). ESSENCE OF LEADERSHIP. : M.MACKMILLON-INTERNATIONAL,NEW YORK.
LOCKE EDWIN A, . 1991. ESSENCE OF LEADERSHIP. : M.MACKMILLON-INTERNATIONAL,NEW YORK.
LOCKE EDWIN A, . ESSENCE OF LEADERSHIP. : M.MACKMILLON-INTERNATIONAL,NEW YORK. 1991.
