Gavaza T, Lebedeva S, Perkova N, Fakhretdinova V. MATHEMATICAL TASKS AS A MEANS OF FORMING PROFESSIONAL COMPETENCIES OF FUTURE TEACHERS. SIE [Internet]. 2019 May 21 [cited 2026 Mar. 11];1:172-8. Available from: https://archive-journals.rtu.lv/sie/article/view/2009