J.J. J, Nugraha D, Rustamli D, Muslimin M, Hasan AR. Improving Performance of Fly Ash Pump in Coal Boilers. IJEAT [Internet]. 2022 Jun. 25 [cited 2024 May 7];2(1):1-10. Available from: https://inter-journal.nusaputra.ac.id/IJEAT/article/view/13