TY JOUR TI INFORMAL EDUCATIONAL ENVIRONMENT AS A FACTOR OF ADOLESCENTS’ PERSONAL SELF-DEVELOPMENT (ON THE EXAMPLE OF ENGINEERING AND TECHNICAL PRACTICES) KW self-development KW informal educational environment KW engineering education KW adolescents KW career guidance KW project activity KW mentoring. JO Profession-Oriented School AU Dobrin, I.E. PY 2025 IS 13 PB INFRA-M Academic Publishing LLC.