Mirzayev FS o‘g‘li. GIPERBOLIK TENGLAMALAR SISTEMASI UCHUN KOSHI MASALASI VA CHEGARAVIY MASALA. ERUS [Internet]. 2023 Sep. 21 [cited 2024 Nov. 22];2(9 SPECIAL):139-45. Available from: http://erus.uz/index.php/er/article/view/3715