J. Al-Hashimi, Ashwak B., Essam F. A. Al-Jumaily, Amina N. Al-Thiwini, and Hitham A. Al-Omari. 2009. “Extraction and Partial Purification of Ipopolysaccaride (LPS) from E. Coli O157:H7 Ioslate”. Journal of Biotechnology Research Center 3 (1):10-14. https://doi.org/10.24126/jobrc.2009.3.1.34.