Widi Astuti and Agus Prasetya and Endang Tri Wahyuni and I Made Bendiyasa, The Effect of Unburned Carbon on Coal Fly Ash toward its Adsorption Capacity for Methyl Violet. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2013, vol. 78(6). 418 - 421 [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/5066.