Kliment Naydenov. "HUMAN RESOURCES DEVELOPMENT AS A FACTOR FOR REGIONAL DEVELOPMENT." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Ecology, Economics, Education and Legislation (2019): 475-482. https://doi.org/10.5593/sgem2019/5.4/s23.063