Weeraphong Chalermrungroj และ Sucheera Phattharayuttawat. (2016) The relationship between psychological capital and ethical behavior in secondary school students, Songkhla province: A case study of Hatyaiwittayalaisomboonkulkanya school. Mahidol University:ม.ป.ท.Weeraphong Chalermrungroj และ Sucheera Phattharayuttawat. 2016. The relationship between psychological capital and ethical behavior in secondary school students, Songkhla province: A case study of Hatyaiwittayalaisomboonkulkanya school. ม.ป.ท.:Mahidol University;Weeraphong Chalermrungroj และ Sucheera Phattharayuttawat. The relationship between psychological capital and ethical behavior in secondary school students, Songkhla province: A case study of Hatyaiwittayalaisomboonkulkanya school. ม.ป.ท.:Mahidol University, 2016. Print.