M.PRADEEP, AYYAPPA SRINIVASAN M G. WATER PURITY TESTING USING pH AND TURBIDITY SENSORS. EPRA International Journal of Multidisciplinary Research (IJMR), [S. l.], v. 9, n. 3, p. 171–175, 2023. Disponível em: http://eprajournals.net/index.php/IJMR/article/view/1672. Acesso em: 25 jul. 2024.