Mukhammadov Said Karimovich and Khalilov Shokhibek Otabek O’g’li 2023. NEGATIVE IMPACT OF ACOUSTICS ON THE EXTERNAL BARRIER STRUCTURES OF THE ARK FORTRESS. American Journal of Applied Science and Technology. 3, 03 (Mar. 2023), 48–52. DOI:https://doi.org/10.37547/ajast/Volume03Issue03-09.