[1]
A. Wijaya, J. W. Soedarsono, and A. P. Laksana, “Study of mixing purple sweet potato and turmeric extract as green corrosion inhibitor for API-5L in NaCl 3.5% environment”, JPTK, vol. 4, no. 4, pp. 140–145, Nov. 2021, doi: 10.24036/jptk.v4i4.21823.