Design & Development of Automatic Stamping & Pad Printing Machine. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 4, p. 92–95, 2017. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/2464. Acesso em: 29 jul. 2025.