Alma E.Abylkassymova, Yessenkeldy A. Tuyakov, Rymgul M. Kaparova, Marat S.Dyussov, LyazzatZh.Zhanseitova, Almagul K.Ardabayeva. “Methodical Aspects of Pupils’ Teaching to Solve Mathematical Task”. International Journal of Advanced Science and Technology, Vol. 29, no. 4s, June 2020, pp. 2440 -52, https://sersc.org/journals/index.php/IJAST/article/view/20764.