Kołodziejski, Maciej, i Mirosław Kisiel. „Examining Musical Aptitudes and Achievements in the Subjective Version of the Self-Evaluation of Teachers’ Work: Current Perspectives”. Acta Universitatis Nicolai Copernici Pedagogika, t. 46, nr 2, luty 2024, s. 41-62, doi:10.12775/AUNC_PED.2023.012.