Abdufayozov Jaxongir Faxriddin oʼgʻli. “TRIGOOMETRIK TENGLAMALARNI GRAFIK USULDA YECHISH ”. TADQIQOTLAR 56, no. 2 (February 21, 2025): 313–315. Accessed August 14, 2025. https://scientific-jl.com/tad/article/view/2723.