Jitjak, T. “Prevalence and Antimicrobial Resistance of Salmonella Spp. Isolated from Fattening Beef Cattle at the Slaughterhouse in Sakon Nakhon Province”. SNRU Journal of Science and Technology, vol. 8, no. 3, Dec. 2016, pp. 338-43, https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/72008.