Ngo Thanh Phong et al. 2026. DETERMINATION OF FOSFOMYCIN RESISTANT GENE (fosA3) IN β-LACTAMASE PRODUCING Escherichia coli FROM HOSPITAL WASTEWATER. HUIT Journal of Science. 26, 1E (May 2026), 68. DOI:https://doi.org/10.62985/j.huit_ojs.vol26.no1E.341.