by Anikeeva, Olga A., Sizikova, Valeriya V., Demidova, Tatiana E., Starovojtova, Larisa I., Akhtyan, Anna G., Godzhieva, Regina B., Karpunina, Anastasia V., Maydangalieva, Zhumagul A.
Published in Eurasia Journal of Mathematics, Science and Technology Education (2019)