MUSTAFA KAMAL, LUQMAN NUR HAKIM, and ZAIDI EMBONG. “Pineapple Stem Extract (Bromelain) As Corrosion Inhibitor for Low Carbon Steel in Ambient Environment”. Enhanced Knowledge in Sciences and Technology 2, no. 2 (November 29, 2022): 346–354. Accessed May 9, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/ekst/article/view/5495.