Muthurajan, H., H. H. Kumar, and D. K. Kharat. “Computer-Controlled Sophisticated Ultrasonic Cleaner”. Defence Science Journal 57, no. 1 (January 1, 2007): 105–108. Accessed August 7, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1736.