Nur Fitriana Salsabila, Maulana, A. and Widji Triana, N. 2023. UTILIZATION OF KETAPANG LEAF TANNIN EXTRACT AS A CORROSION INHIBITOR OF METALS IN 1 M HCl MEDIA. KURVATEK. 8, 1 (Apr. 2023), 33-38. DOI:https://doi.org/10.33579/krvtk.v8i1.4006.