Gregorio, S. C., & Cordova, M. T. T. (1997). Sense of identity and academic performance of students in the university of the Philippines Clark field Pampanga. University of the Philippines Diliman Extension Program in Pampanga.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gregorio, Sarah C., και Marie Tessibeth T. Cordova. Sense of Identity and Academic Performance of Students in the University of the Philippines Clark Field Pampanga. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 1997.
Παραπομπή σε μορφή MLA (9th εκδ.)Gregorio, Sarah C., και Marie Tessibeth T. Cordova. Sense of Identity and Academic Performance of Students in the University of the Philippines Clark Field Pampanga. University of the Philippines Diliman Extension Program in Pampanga, 1997.