Sangsa, N., N. Putthanachote, and P. Sarakarn. “The Association Between Antibiotics-Treated Patients in Roi Et Hospital and Their Risk of Infection With Extended Spectrum Beta-Lactamase Producing Escherichia Coli (ESBL-E.Coli)”. Srinagarind Medical Journal, vol. 33, no. 6, Oct. 2018, pp. 551-7, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/149327.