RAMANATHAN, V.; RAMAN, N. Ultrasonic Velocity and Compressibility Index in Acid Base Solutions. Defence Science Journal, [S. l.], v. 19, n. 2, p. 149–152, 2014. DOI: 10.14429/dsj.19.7483. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7483. Acesso em: 28 jul. 2025.