Gafarova, Yelena, et al. “The Approbation of a Mathematical Model of the Influence of Three-Level Semantic Representation of an Educational Mes-Sage on the Dynamics of Students’ Creativity”. International Journal of Engineering & Technology, vol. 7, no. 4.38, Dec. 2018, pp. 171-3, https://doi.org/10.14419/ijet.v7i4.38.24347.