Nualnetr, N., Thamrongwaranggoon, T. and Katekaew, S. 2015. Impact of integrated organic farming practice on health of people in Ubolratana district, Khon Kaen province. Asia-Pacific Journal of Science and Technology. 20, 3 (Sep. 2015), 360–367. DOI:https://doi.org/10.14456/kkurj.2015.30.