FIRDAUS, U. Manufacture of Digftal Distance Measuring Instruments Using Ultrasonic Waves. Journal Basic Science and Technology, [S. l.], v. 11, n. 2, p. 62-69, 2022. DOI: 10.35335/jbst.v11i2.3321. Disponível em: http://ejournal.iocscience.org/index.php/JBST/article/view/3321. Acesso em: 16 aug. 2026.