Papusson Chaiwat และ Pongsa Pornchaiwiseskul. (2007) Competitive equilibrium with quality uncertainty. Chulalongkorn University:ม.ป.ท.Papusson Chaiwat และ Pongsa Pornchaiwiseskul. 2007. Competitive equilibrium with quality uncertainty. ม.ป.ท.:Chulalongkorn University;Papusson Chaiwat และ Pongsa Pornchaiwiseskul. Competitive equilibrium with quality uncertainty. ม.ป.ท.:Chulalongkorn University, 2007. Print.