Mykhalevych, Volodymyr M., and Oksana I. Tyutyunnik. “DESIGN OF EDUCATIONAL PROBLEMS ON LINEAR PROGRAMMING USING SYSTEMS OF COMPUTER MATHEMATICS”. Information Technologies and Learning Tools 38, no. 6 (November 20, 2013): 123–137. Accessed May 3, 2024. https://journal.iitta.gov.ua/index.php/itlt/article/view/896.