Critical Perspectives On Activity : Explorations Across Education, Work, and Everyday Life Sawchuk, Peter H.; Duarte, Newton.; Elhammoumi, MohamedzebkCambridge University Press2006사회과학,Social Sciences: General HM1011.C75 2006eb9780521849999'http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=149846327