Reza MS, Hasan AK, Afroze S, Bakar MSA, Taweekun J, Azad AK. Analysis on Preparation, Application, and Recycling of Activated Carbon to Aid in COVID-19 Protection. IJIE. 2020;12(5):233-244. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/6380