Nattakan Lakkitjaroen, Sarawan Kaewmongkol, Pornphimon Metheenukul, Anamika Karnchanabanthoeng, Khomsan Satchasataporn, Narong Abking, and Worawut Rerkamnuaychoke. “Prevalence and Antimicrobial Susceptibility of Streptococcus Suis Isolated from Slaughter Pigs in Northern Thailand”. Agriculture and Natural Resources, vol. 45, no. 1, Feb. 2011, pp. 78-83, https://li01.tci-thaijo.org/index.php/anres/article/view/245135.