DIANA, N. .; GINTING, E.; KARO, P. K. The Effect of Cacao Leaf Extract as An Inhibitor with A Concentration Variation of 0%, 3%, 5%, And 7% on The Corrosion Rate of St 37 Steel with Immersion Time of 3 Days And 6 Days in NaCl Corrosive Medium 3%. Journal of Energy, Material, and Instrumentation Technology, [S. l.], v. 3, n. 4, p. 138–146, 2022. DOI: 10.23960/jemit.v3i4.114. Disponível em: http://jemit.fmipa.unila.ac.id/index.php/jurnal/article/view/114. Acesso em: 26 nov. 2025.