Tria, Geraldine E Principles of mental hygiene / Geraldine E. Tria, Josefina E. Gaerlan, and Delia A. Limpingco. - Quezon City : Pantas Publishing & Printing Inc., 2016. - 156 pages ; 22 cm ISBN: 9786219528023 Subjects--Topical Terms: Mental health--Social aspects. Dewey Class. No.: Fil./Psych. 362.204 T819 2016