Isomov I, Shoymardonov T, Obidov A. E-PORTFOLIO AS A MEANS OF UPGRADING PROFESSIONAL COMPETENCE OF PEDAGOGICAL STAFF FROM HIGHER EDUCATIONAL INSTITUTIONS. SIE [Internet]. 2017 May 26 [cited 2024 Nov. 21];3:472-8. Available from: https://journals.ru.lv/index.php/SIE/article/view/2421