Gulnoza Bahodirovna, Yulchibayeva. “ELLIPTIK TENGLAMALAR UCHUN CHEGARAVIY MASALALARNI APPROKSIMATSIYALASH”. Scientific Impulse 1, no. 1 (August 1, 2022): 55–59. Accessed April 8, 2025. http://nauchniyimpuls.ru/index.php/ni/article/view/200.