Swaei, Sultana, Abdalah Klash, Mohamed Elbuzedi, wael Elhrari, and Omar Sultan. “Improving the Properties of Waste Polystyrene Foam via Heterogeneous Sulfonation: A Sustainable Method for Oil Water Separation Applications”. Journal of Pure & Applied Sciences 24, no. 3 (December 3, 2025): 195–199. Accessed July 21, 2026. https://www.sebhau.edu.ly/journal/jopas/article/view/3886.