ดุกสุขแก้ว ส. “The Prevalence of Extended Spectrum Beta-Lactamase Producing in K.pneumoniae and E.Coli at Phatthalung Hospital”. Region 11 Medical Journal, vol. 30, no. 2, June 2016, pp. 97-103, https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/178638.