Iryna Korobova, В. П. Коробов, Arshavir Sarkisov, Kira Baysha, О В Плотникова (2020). PORTFOLIO TECHNOLOGY IN THE SYSTEM OF FUTURE GEOGRAPHY TEACHERS PERSONALLY-ORIENTED EDUCATION. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Ecology, Economics, Education and Legislation, 821-828. https://doi.org/10.5593/sgem2020/5.2/s22.101