Dhimal, B.; Kayastha, R. B.; Karmacharya, B. M. Application of the Presence Absence (H₂S) Test Vial for Coliforms Detection in Rural Drinking Water of Nepal. NPRC J. Multidis. Res. 2025, 2 (8), 175-190. https://doi.org/10.3126/nprcjmr.v2i8.83843.