G. Z. Khabibullina, S. V. Maklets, and L. E. Khairullina, “Application of Information Technologies to Improve the Quality of Mathematical Trainingo Teachers of Natural-Science Disciplines”, IJET, vol. 7, no. 4.7, pp. 74–77, Sep. 2018, doi: 10.14419/ijet.v7i4.7.20387.