Zhenchenko, Maryna, Oksana Melnyk, Yaroslava Prykhoda, and Igor Zhenchenko. “Ukrainian E-Learning Platforms for Schools: Evaluation of Their Functionality”. The International Review of Research in Open and Distributed Learning 23, no. 2 (May 2, 2022): 136-150. Accessed December 9, 2022. https://www.irrodl.org/index.php/irrodl/article/view/5769.