Abdurakhim Khojiyev Abdurakhmonovich, Turdiyeva Ugiloy Komiljon qizi, and Badalov Jamshidbek Erkinjon o’g’li. 2023. “CHEMICAL COMPOSITION OF LEATHER USED FOR TRANSFORMATION ASSORTMENT AND RESEARCH OF PHYSICAL-MECHANICAL PROPERTIES”. "XXI ASRDA INNOVATSION TEXNOLOGIYALAR, FAN VA TAʼLIM TARAQQIYOTIDAGI DOLZARB MUAMMOLAR" Nomli Respublika Ilmiy-Amaliy Konferensiyasi 1 (11):48-56. https://universalpublishings.com/index.php/itfttdm/article/view/2552.