mahmoud, Waleed A., Mahmoud A. Al-Assi, and Nessrin Abdul Sahib Mohammed. 2003. “Extraction and Purification of Magnesium Sulphate from Iraqi Dolomite”. Iraqi Journal of Chemical and Petroleum Engineering 4 (2): 37-41. https://doi.org/10.31699/IJCPE.2003.2.6.