Prichavijy Promjak และ Phitsanes Jessadachatr. (2002) Cost-Recovery of Health Facilities for Foreign Patients in Nan Province. Chulalongkorn University:ม.ป.ท.Prichavijy Promjak และ Phitsanes Jessadachatr. 2002. Cost-Recovery of Health Facilities for Foreign Patients in Nan Province. ม.ป.ท.:Chulalongkorn University;Prichavijy Promjak และ Phitsanes Jessadachatr. Cost-Recovery of Health Facilities for Foreign Patients in Nan Province. ม.ป.ท.:Chulalongkorn University, 2002. Print.