00744naa#a2200169#i#450# EN\\bibl\131288 20260818132233.2 2686-7788 20260717b2026####ek#y0engy0150####ca RU EXTRACURRICULAR ACTIVITIES AS A FACTOR IN PROFESSIONAL SELF-DETERMINATION AND PERSONAL DEVELOPMENT OF A SCHOOL STUDENT Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2026 3 с. Journal article local Высшее образование. Высшая школа. Подготовка научных кадров. 378 Sitosanova Ol'ga Vladimirovna angtu.editorum.ru