Sidorenko, Tatiana, and Vladimir Yampolsky. “The System Analysis in Language Teaching and Learning for Technical Students in Russia”. International Journal of Emerging Technologies in Learning (iJET) 10, no. 5 (November 13, 2015): pp. 22–28. Accessed May 2, 2024. https://online-journals.org/index.php/i-jet/article/view/4740.