Soleman, N., Emad, Saad Jasim, H., هالة, O. Al jbouri, M. and مطیع 2021. A Study of the chemical nature of sulfur-containing rocks and Frasch sulfur in the Al-Mishraq Sulfur field. Journal of Education and Science (JES). 30, 1 (Mar. 2021), 1–9. DOI:https://doi.org/10.33899/edusj.2020.126714.1051.