Bos, Jaap, and Peter Zomer. “Humorous Learning. Dialogical Uses of Humor in Training Situations”. Studia Psychologica: Theoria et praxis, no. 8 (August 24, 2008): 194–214. Accessed April 20, 2024. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2699.