Ералиев, С. and Бердіахмет, И. 2020. METHODS FOR SOLVING PROBLEMS OF ELEMENTARY MATHEMATICS OF HIGHER DIFFICULTY SOLVING HIGH-COMPLEXITY PROBLEMS . Bulletin of Abai KazNPU. Series of Physical and mathematical sciences. 72, 4 (Dec. 2020), 17–22. DOI:https://doi.org/10.51889/2020-4.1728-7901.02.