MUTHURAJAN, H.; KUMAR, H. H.; KHARAT, D. K. Computer-controlled Sophisticated Ultrasonic Cleaner. Defence Science Journal, [S. l.], v. 57, n. 1, p. 105–108, 2007. DOI: 10.14429/dsj.57.1736. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1736. Acesso em: 15 jun. 2025.