Blyznyuk, Tetyana. “TRAININGS AS A KIND OF INFORMAL EDUCATION AND THEIR EFFICIENCY FOR EDUCATIONAL PROCESS: EXPERIENCE AND PROSPECTS”. Mountain School of Ukrainian Carpaty, no. 26 (April 22, 2022): 5–11. Accessed April 20, 2024. https://journals.pnu.edu.ua/index.php/msuc/article/view/6565.