Sembiring, A.K.O., Putra, A.A.B. and Ratnayani, O. 2023. UTILIZATION OF CINNAMON BARK (CINNAMOMUM BURMANNI) EXTRACT AS A NATURAL INHIBITOR FOR THE CONTROL OF CORROSION RATE IN IRON METAL. Jurnal Ilmu Pendidikan Indonesia. 11, 3 (Nov. 2023), 140–150. DOI:https://doi.org/10.31957/jipi.v11i3.2341.