Halvorson, H. G. (2012). 9 things successful people do differently. Boston, Mass.: Harvard Business Review Press.
Chicago Stili AlıntıHalvorson, Heidi Grant-. 9 Things Successful People Do Differently. Boston, Mass.: Harvard Business Review Press, 2012.
MLA AlıntıHalvorson, Heidi Grant-. 9 Things Successful People Do Differently. Boston, Mass.: Harvard Business Review Press, 2012.
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