Ibrahem Altee, Mohammed, and Mahmoud Zakei Alhaso. “Investigation on Some Beta- Lactamase Enzym Types in Rhizobium Leguminosarum Biovar Viciae”. Journal of Education and Science (JES) 22, no. 2 (June 1, 2009): 149–158. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23514.