Sumiati, Revias, Ahmad Syapawi. COAL ASH WASTE UTILIZATION FOR MAKING PAVING BLOCK OF ECO-FRIENDLY. PSF [Internet]. 2023 May 8 [cited 2024 Nov. 24];1(2):72-80. Available from: https://jurnal.polsri.ac.id/index.php/semnasfirst/article/view/5666