Siriwan Pitayarangsarit, 2509-Chulalongkorn University. College of Public Health. Health Systems Development Programme.2011-02-142011-02-141996-01-131996-01-139746369016http://imsear.searo.who.int/handle/123456789/128339Typescript (photocopy)Text in English.Thesis (M.P.H.)--College of Public Health. Chulalongkorn University, 1996.College of Public Health Sciences: Chulalongkorn UniversityPrimary health care Khon Kaen.Health volunteers.Evaluation of dental caries prevention in preschool children / Siriwan Pitayarangsarit.Thesis