H. Prabowo, B. Munir, Y. Pratesa, and J. W. Soedarsono, “Comparison of 2507 Duplex and 28 % Cr- Austenitic Stainless Steel Corrosion Behavior for High Pressure and High Temperature (HPHT) in Sour Service Condition with C-ring Experiment”, Period. Polytech. Mech. Eng., vol. 65, no. 3, pp. 280–285, Jan. 2021.