I. Yurievna Glazkova, T. Mikhailovna Litvinova, O. Mikhailovna Kolomiets, and O. Alexandrovna Smyslova, “Studying the Effect of New Didactic Tool on the Effectiveness of Educational Activity”, IJET, vol. 7, no. 4.38, pp. 199–200, Dec. 2018, doi: 10.14419/ijet.v7i4.38.24441.