Akbar, S. A., R. Ovisa, and M. Muttakin. “Utilization Of Guava Leaves Extract (Psidium Guajava) As Ecofriendly Corrosion Inhibitor For Iron”. Al-Kimia, Vol. 7, no. 1, June 2019, pp. 91-99, doi:10.24252/al-kimia.v7i1.6331.