Nantiya Kaweewongprawat และ Sunti TiraPat. (2007) Predicting issuer rating change and standard of rating agency : empirical evidence in G7 except US. Chulalongkorn University:ม.ป.ท.Nantiya Kaweewongprawat และ Sunti TiraPat. 2007. Predicting issuer rating change and standard of rating agency : empirical evidence in G7 except US. ม.ป.ท.:Chulalongkorn University;Nantiya Kaweewongprawat และ Sunti TiraPat. Predicting issuer rating change and standard of rating agency : empirical evidence in G7 except US. ม.ป.ท.:Chulalongkorn University, 2007. Print.