Hrybiuk Олена Олександрівна. “THE VARIATIV MODEL FOR RESEARCH TRAINING FOR MATH STUDENTS USING COMPUTER-ORIENTED METHODICAL SYSTEM”. Information Technologies and Learning Tools 77, no. 3 (June 19, 2020): 39–65. Accessed October 25, 2021. https://journal.iitta.gov.ua/index.php/itlt/article/view/3375.