Chantapong, P., M. Chanthapat, P. Krison, K. Outanone, T. Upapong, S. Suanboon, S. Pomwan, V. Luvira, and P. Kuhirunyiratn. “Knowledge and Risk Behaviors of Ophisthorchis Viverrini Infection Among the High School Students in Khonkaen Municipality”. Srinagarind Medical Journal, vol. 28, no. 2, Aug. 2013, pp. 239-45, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/11062.