Eleni C. Gkika, Special Research & Education Personnel, Technological Educational Institute of Athens, Department of Business Administration, Email:
DOI: 10.26341/issn.2241-4002-2017-1b-6
Eleni C. Gkika, Special Research & Education Personnel, Technological Educational Institute of Athens, Department of Business Administration, Email:
DOI: 10.26341/issn.2241-4002-2017-1b-6