Ashurova Maftuna Ali qizi,. ???? ???? (????) ???? ???? ???? ???? OPERATORNING MUHIM SPEKTRI VA SPEKTRAL XOSSALARI. tadqiqotlar [Internet]. 2023 May 31 [cited 2024 Sep. 19];18(2):235-8. Available from: http://pedagoglar.uz/index.php/01/article/view/4796