EFFECTIVENESS OF USING THE COMPETENCY-BASED APPROACH IN DEVELOPING VOLITIONAL QUALITIES IN SENIOR SCHOOL STUDENTS. Scientific journal of the Fergana State University, [S. l.], v. 30, n. 6, p. 18, 2025. Disponível em: https://journal.fdu.uz/index.php/sjfsu/article/view/5968. Acesso em: 9 jan. 2026.