Susanto, E. ., Soedjono, E. S. ., & Titah, H. S. . (2025). Enhancing acid water treatment in coal mine settling ponds using sodium hydroxide (NaOH): A case study in Murung Raya, Central Kalimantan. International Journal of Innovative Research and Scientific Studies, 8(4), 1563–1569. https://doi.org/10.53894/ijirss.v8i4.8132