Evaluation of the Potential of Boiler Ash from Palm Oil Millas an Alternative Material for the Improvement of Acid Coal Main Drainage (Ermadani, Sarman S, Yasdi, Fuad Nurdiansyah, & Suryanto , Trans.). (2024). Pakistan Journal of Analytical & Environmental Chemistry, 25(1), 90-98. https://doi.org/10.21743/pjaec/2024.06.09