Wanachiwanawin, D, V Junnoo, J Ongrotchanakun, S Kaewmanee, P Punthuprapasa, A Yoolek, S Suvuttho, N Monkong, P Lertlaituan, and W Patharangura. “Prevalence of Parasitic Infections in Thai Workers from 1993 to 1997”. Siriraj Medical Journal 51, no. 4 (April 1, 1999): 225–231. accessed September 29, 2026. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246980.