3Julia Evetts. The Concept of Professionalism: Professional work, Professional Practice and Learning [M]: Germany: Springer International Handbooks of Education, 2014.
5Miller P.F and Coady, W.T.Vocational Ethics: Toward the Development of An Enabling Work Ethic. Springfield: Illi- nois Department of Adult, Vocational and Technical Educa- tion, 1986.