Vladimirov L, Kovachev N. STUDY OF THE ENVIRONMENTAL NOISE POLLUTION IN PRODUCTION ECONOMICAL ACTIVITIES: STUDY OF THE ENVIRONMENTAL NOISE POLLUTION IN PRODUCTION ECONOMICAL ACTIVITIES. JSAR [Internet]. 2023 Mar. 7 [cited 2024 Nov. 22];4(1):154-62. Available from: https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/94