Lytvynchuk, N. and Melnychenko, N. 2023. AGGRESSIVENESS OF JUNIOR SCHOOLCHILDREN AS A SOCIAL AND PSYCHOLOGICAL PROBLEM. Proceedings of Kyiv Aviation Institute. Series: Pedagogy. Psychology. 22 (Jun. 2023), 111–118. DOI:https://doi.org/10.18372/2411-264X.22.17614.