CO-PRODUCTION OF EXTENDED-SPECTRUM BETA-LACTAMASES AND METALLO BETA-LACTAMASES AMONG MULTI-DRUG RESISTANT GRAM-NEGATIVE BACTERIA ISOLATES COLLECTED FROM TERTIARY HOSPITALS IN OYO STATE, NIGERIA. (2020). FUDMA JOURNAL OF SCIENCES, 4(3), 230-241. https://doi.org/10.33003/fjs-2020-0403-188