Pattama Polyong, C. ., C. . Kakasikan, P. . Jongjit, T. . Wongpen, Y. . Ponpratom, and P. . Pondongnok. “Mixed Method Research: The Rice famers’s Behavior of Chemical Pesticide Using Influence of Acute Symptom Among Farmers in Phachi District, Phra Nakhon Si Ayutthaya Province”. UBRU Journal for Public Health Research, vol. 9, no. 1, June 2020, pp. 104-15,