Ranjan Vipula Shantha Nagasena Arachchilage และ Paitoon Kraipornsak. (2010) Technical and scale efficiency of government district base hospitals in Srilanka. Chulalongkorn University:ม.ป.ท.Ranjan Vipula Shantha Nagasena Arachchilage และ Paitoon Kraipornsak. 2010. Technical and scale efficiency of government district base hospitals in Srilanka. ม.ป.ท.:Chulalongkorn University;Ranjan Vipula Shantha Nagasena Arachchilage และ Paitoon Kraipornsak. Technical and scale efficiency of government district base hospitals in Srilanka. ม.ป.ท.:Chulalongkorn University, 2010. Print.