Prasopsuk, J., S. Laohasiriwong, A. Promkhambut, and C. Boonthai Iwai. “Risk Assessment of Pesticide Residues in Soil to Health of Chinese Kale Growers in Khon Kaen Province, Northeast Thailand”. Thai Agricultural Research Journal, vol. 37, no. 3, Dec. 2019, pp. 272-85, doi:10.14456/thaidoa-agres.2019.23.