Sanga Intajak. 1996. Cost and benefit analysis of contracting out primary medical care to private clinics under social security scheme. Department of Economics, Chulalongkorn University;
Sanga Intajak. (1996) Cost and benefit analysis of contracting out primary medical care to private clinics under social security scheme . Chulalongkorn University/Bangkok.
Sanga Intajak. Cost and benefit analysis of contracting out primary medical care to private clinics under social security scheme. . Bangkok:Chulalongkorn University, 1996.
Sanga Intajak. (1996) Cost and benefit analysis of contracting out primary medical care to private clinics under social security scheme . Chulalongkorn University/Bangkok.