Rivas, S. N., & Cordova, M. T. T. (2000). The relationship of academic course and gender with faith in achieving goals, need for social approval, competitiveness, emotional insecurity, self-control and academic achievement of UPSF students. University of the Philippines Diliman Extension Program in Pampanga.

Rivas, Sharon N., and Marie Tessibeth T. Cordova. The Relationship of Academic Course and Gender with Faith in Achieving Goals, Need for Social Approval, Competitiveness, Emotional Insecurity, Self-control and Academic Achievement of UPSF Students. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2000.

Rivas, Sharon N., and Marie Tessibeth T. Cordova. The Relationship of Academic Course and Gender with Faith in Achieving Goals, Need for Social Approval, Competitiveness, Emotional Insecurity, Self-control and Academic Achievement of UPSF Students. University of the Philippines Diliman Extension Program in Pampanga, 2000.