Emsalem F. Hawege, و Almaki A. abushina. "Separation Sulfur Components by Adsorption Technique". Bani Waleed University Journal of Humanities and Applied Sciences 8, no. 2 (يونيو 1, 2023): 540–553. تاريخ الوصول نوفمبر 9, 2025. https://jhas-bwu.com/index.php/bwjhas/article/view/480.