Қасенова, Л., . Г. . Еңсебаева, and Г. . Шүйтенов. “CONSTRUCTION OF A PHYSICAL AND MATHEMATICAL MODEL OF THE GRAVITATIONAL FIELD”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences, vol. 73, no. 1, Mar. 2021, pp. 91-95, doi:10.51889/2021-1.1728-7901.13.