Ekalak Muangsri และ Sunti Tirapat. (2008) Using the probability of default as the determinant of firms' capital structure : empirical study in G7 nations. Chulalongkorn University:ม.ป.ท.Ekalak Muangsri และ Sunti Tirapat. 2008. Using the probability of default as the determinant of firms' capital structure : empirical study in G7 nations. ม.ป.ท.:Chulalongkorn University;Ekalak Muangsri และ Sunti Tirapat. Using the probability of default as the determinant of firms' capital structure : empirical study in G7 nations. ม.ป.ท.:Chulalongkorn University, 2008. Print.