Permatasari R, Sodri A, gustina HA. Utilization of Fly Ash Waste in the Cement Industry and its Environmental Impact: A Review . jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2023 Sep. 25 [cited 2024 Nov. 16];9(9):569-7. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/4504