“INVESTIGATION OF PUMPKIN POD EXTRACT AS CORROSION INHIBITOR FOR CARBON STEEL IN HCL SOLUTION”, NIJOTECH, vol. 39, no. 1, pp. 173–181, Jan. 2020, Accessed: Apr. 23, 2026. [Online]. Available: https://www.nijotech.com/index.php/nijotech/article/view/2234