R. Moskalenko, M., M. Dorozhkin, E., A. Tolstykh, O., E. Marakulina, U., & V. Mustakimova, M. (2018). Electronic learning resources and online education technology: issues of effectiveness evaluation. International Journal of Engineering & Technology, 7(2.13), 189-193. https://doi.org/10.14419/ijet.v7i2.13.11685