Matrosova, Nataliia D., and Dmitry G. Shtennikov. “THE PERSONIFICATION OF THE USER’S INTERFACE: CLASSIFICATION VS. CLUSTERIZATION OF USERS OF ONLINE COURSES”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 20, 2019): 218–221. Accessed April 21, 2025. https://journals.rta.lv/index.php/ETR/article/view/4080.