Amirkhan, Kibar. 2023. “Оn the Efficiency of Using the Vector-Coordinate Method at the Solving of Stereometric Problems in the Middle School”. Scientific and Pedagogical Journal "Bilim" of the I. Altynsarin National Academy of Education 107 (4):48-55. https://doi.org/10.59941/2960-0642-2023-4-48-55.