Chaikovska, Oksana, Anzhela Posokhova, Liudmyla Melnyk, and Alla Kurytsia. 2021. “The Development of Prosocial Tendencies in Out-of-School Students”. Revista Romaneasca Pentru Educatie Multidimensionala 13 (4):543-67. https://doi.org/10.18662/rrem/13.4/497.