Nurgabyl Д.Н., and Nurpeissov К.С. 2021. “CONSTRUCTION OF SECTIONS OF POLYHEDRON METHOD OF TRACES”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences 69 (1). Almaty, Kazakhstan:144-49. https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/227.