Saengthongpinit, C., D. Nane-Siri, P. Aparachita, P. Apiwannarat, P. Buakhao, W. Bowornnantiwath, N. Thengchaisri, and T. Songserm. “Longitudinal Study of Salmonella and Campylobacter Species from Two Laying Duckling Flocks in The Central Region of Thailand”. The Thai Journal of Veterinary Medicine, vol. 44, no. 3, Sept. 2014, pp. 355-61, https://he01.tci-thaijo.org/index.php/tjvm/article/view/21707.