Benjawan Runseawa. (2005) The characteristics of the colored progressive matrices (CPM) and the advanced progressive matrices (APM) in Thai students age 6-18 years old : the southern region. Mahidol University,:ม.ป.ท.Benjawan Runseawa. 2005. The characteristics of the colored progressive matrices (CPM) and the advanced progressive matrices (APM) in Thai students age 6-18 years old : the southern region. ม.ป.ท.:Mahidol University,;Benjawan Runseawa. The characteristics of the colored progressive matrices (CPM) and the advanced progressive matrices (APM) in Thai students age 6-18 years old : the southern region. ม.ป.ท.:Mahidol University, 2005. Print.