Helmi H*, Gusbi A, Fares A. 2017. “The Prevalence of Verocytotoxin-Producing Escherichia Coli O157 (VTEC) in Dairy Cattle in Tripoli Area, Libya”. AlQalam Journal of Medical and Applied Sciences 1 (1):31-38. https://uta.edu.ly/journal/index.php/Alqalam/article/view/111.