Шохижахон, Кудратов. “: Kudratov Shohijaxon Ixtiyorovich Toshkent Davlat Transport Universiteti ”Lokomotivlar Va Lokomotiv xo’jaligi” Kafedrasi Tayanch Doktoranti”. Scientific and Technical Journal of Namangan Institute of Engineering and Technology 8, no. 1 (March 31, 2023): 141–145. Accessed November 24, 2024. http://niet.uz/index.php/nj/article/view/3.