Djumabaev, N., and T. Kuanıshbaev. “PARAMETRLI KÓRSETKISHLI TEŃLEMELER HÁM TEŃSIZLIKLERDI SHESHIW USILLARI”. SCIENCE and SOCIETY, no. 2-2, June 2022, pp. 106-7, https://journal.ndpi.uz/ss/article/view/2022-2-2-051.