Kleangkhow, V., Aphipanyo, P. and Mererk, S. 2026. ENHANCING EDUCATIONAL SELF-CONFIDENCE THROUGH A GUIDANCE ACTIVITY PACKAGE BASED ON THE FIVE BALA FOR UPPER PRIMARY STUDENTS AT WAT SAMUHARAT BAMRUNG SCHOOL IN PATHUM THANI PROVINCE. Journal of Educational Review Faculty of Education in MCU. 12, 3 (Jan. 2026), 605–614.