Chumpo Ponrod และ Supaporn Kiattisin. (2014) The study of black-box testing techniique for collateral management system. Mahidol University:ม.ป.ท.Chumpo Ponrod และ Supaporn Kiattisin. 2014. The study of black-box testing techniique for collateral management system. ม.ป.ท.:Mahidol University;Chumpo Ponrod และ Supaporn Kiattisin. The study of black-box testing techniique for collateral management system. ม.ป.ท.:Mahidol University, 2014. Print.