Matias, I. K. M. (2009). Depression tendency scale among college students: A test development research submitted to the psychology program of the University of the Philippines - Diliman extension program in Pampanga. University of the Philippines Diliman extension program in Pampanga.
Chicago Style (17. basım) AtıfMatias, Irish Kristine M. Depression Tendency Scale Among College Students: A Test Development Research Submitted to the Psychology Program of the University of the Philippines - Diliman Extension Program in Pampanga. Pampanga: University of the Philippines Diliman extension program in Pampanga, 2009.
MLA (9th ed.) AtıfMatias, Irish Kristine M. Depression Tendency Scale Among College Students: A Test Development Research Submitted to the Psychology Program of the University of the Philippines - Diliman Extension Program in Pampanga. University of the Philippines Diliman extension program in Pampanga, 2009.