Fajri AA, Tb. Ade Rahmatullah, Gurruh Dwi Septano, Nasaruddin. Analysis of Hardness Level in Enim River for Demineralization Water Process in Thermal Power Plant Tanjung Enim. jidt [Internet]. 2025Jul.9 [cited 2025Nov.25];:67-5. Available from: https://jidt.org/jidt/article/view/632