Twardowska-Staszek, Estera, and Izabela Zych. “Social and Emotional Competencies of Polish Pupils: Psychometric Properties of the Polish Version of the Social and Emotional Competencies Questionnaire (SEC–Q)”. Multidisciplinary Journal of School Education 12, no. 2 (24) (December 30, 2023): 187-202. Accessed May 12, 2024. https://czasopisma.ignatianum.edu.pl/jpe/article/view/2629.