Grusiewicz, Mirosław. “The Sense of Contentment and Satisfaction of General Secondary School Students in the Context of Their School Musical Activities”. HORIZONS OF EDUCATION 24, no. 71 (September 30, 2025): 33-43. Accessed December 5, 2025. https://horyzontywychowania.ignatianum.edu.pl/HW/article/view/2729.