Isomov, Ismoil, Tuymurod Shoymardonov, and Azamat Obidov. 2017. “E-PORTFOLIO AS A MEANS OF UPGRADING PROFESSIONAL COMPETENCE OF PEDAGOGICAL STAFF FROM HIGHER EDUCATIONAL INSTITUTIONS”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 3 (May): 472-82. https://doi.org/10.17770/sie2017vol3.2421.