Petkov, Oleksandr O., and Maryna O. Petkova. “TEST CONTROL OF CALCULATED TASKS EXECUTION AT THE ALGORITHMIC LEVEL OF EDUCATIONAL ACTIVITY”. Information Technologies and Learning Tools 43, no. 5 (October 2, 2014): 189–200. Accessed April 28, 2024. https://journal.iitta.gov.ua/index.php/itlt/article/view/1121.