[1]
Jantapol, B. and changthong, S. 2024. A Study of Production Process and Quality of Water Supply in Nongtum Subdistrict Municipality, Mueang District, Khon Kaen Province. Journal of Health Promotion and Environmental Health Research Health Promotion Centre 8 Udon Thani. 2, 4 (Sep. 2024), 110–123.