Level of optimisim in relation to academic performance of 2nd year male and female nursing students of Bataan polytechnic state college balanga campus in the a.y. 2005-2006 - Vallena, Gregorio III C.; Tharayil, Davis P. (Pampanga University of the Philippines Diliman Extension Program in Pampanga, 2006)
Thesis (Psychology) UPDEPP,c2006.