REVIEW ON PREVENTIVE MAINTENANCE OF DRILLING MACHINE DURING THE OPERATION. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 18, p. -, 2022. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/6404. Acesso em: 8 sep. 2025.