Budiarsa, I.N. et al. 2022. Inhibitory Effect of Trigona Sp. Propolis Extract on Corrosion Rate of API 5L-B Steel in a Corrosive Medium. International Journal on Advanced Science, Engineering and Information Technology. 12, 2 (Apr. 2022), 661–667. DOI:https://doi.org/10.18517/ijaseit.12.2.14949.