Nuanmuang, N., Baiubon, P., Wannathong, N., Nunta, B., Suriya, N., Chaingam, P. and Kummasook, A. 2018. Phenotypic and Genotypic Characterization of Extended-Spectrum -Lactamase Producing Escherichia coli Isolated from Pig Feces in Farms, Muang Phayao. Asian Health, Science and Technology Reports. 26, 4 (Nov. 2018), 17–25. DOI:https://doi.org/10.14456/nujst.2018.18.