Gordiienko-Mytrofanova, I., & Bezkorovainyi , S. (2024). PSYCHOLOGICAL CHARACTERISTICS OF THE CURRENT DEVELOPMENT OF MISCHIEVOUSNESS AS A COMPONENT OF PLAY COMPETENCE (BASED ON THE RESULTS OF A DIAGNOSTIC EXPERIMENT). PSYCHOLOGICAL JOURNAL, 10(2), 38–62. https://doi.org/10.31108/1.2024.10.2.3