KHAMITOV, A. A study to determine the change in porosity indicators of the shoe upper hinge in technology processes. Scientific and Technical Journal of Namangan Institute of Engineering and Technology, [S. l.], v. 8, n. 3`, 2024. Disponível em: http://niet.uz/index.php/nj/article/view/281. Acesso em: 23 oct. 2024.