Xonkulov, Ulug’bek. “GEOMETRIYADA OʻRGANILADIGAN TRIGONOMETRIK MASALALAR HAQIDA”. Farg’ona davlat universiteti 31, no. 1 (February 25, 2025): 92. Accessed June 23, 2025. https://journal.fdu.uz/index.php/sjfsu/article/view/5878.