Abhijit MALLICK. Study and Estimation of Hardness of Water by pH-Metric Titration Method. Chemistry and Biochemistry: Research Progress Vol. 5, [S. l.], p. 110–121, 2025. DOI: 10.9734/bpi/cbrp/v5/5054. Disponível em: https://stm.bookpi.org/CBRP-V5/article/view/18028. Acesso em: 4 jul. 2026.