Yetri, Y., Emriadi, ., Jamarun, N., & Gunawarman, . (2015). Corrosion Inhibitor of Mild Steel by Polar Extract of Theobroma cacao Peels in Hydrochloric Acid Solution. Asian Journal of Chemistry, 27(3), 875–881. https://doi.org/10.14233/ajchem.2015.17173