Qorabayev Sherzod Ahmadjonovich. PNEVMOMEXANIK USULDA YIGIRILGAN IPNING HUSUSIYATLARI. tadqiqotlar [Internet]. 2023 Sep. 6 [cited 2024 Sep. 20];22(1):23-8. Available from: http://pedagoglar.uz/index.php/01/article/view/6431