Sheilatina, S., Julinawati, J., Shara Fonna, S. F., & Fathurrahmi, F. (2023). Utilization of tannin extract from spent coffee ground (SCG) as a green corrosion inhibitor on ferrous metals in acidic and alkaline media. Journal of Pharmaceutical and Sciences, 6(5-si), 168–176. https://doi.org/10.36490/journal-jps.com.v6i5-si.403