TKACHENKO, Olena. Research of the emotional component of first-graders’ adaptation to school as an indicator of the effectiveness of the implementation of the principles of New Ukrainian School in the educational process. EUROPEAN HUMANITIES STUDIES: State and Society, [S. l.], v. 19, n. 3(I), p. 52–63, 2019. DOI: 10.38014/ehs-ss.2019.3-I.05. Disponível em: https://ehs.eeipsy.org/index.php/ehs/article/view/108. Acesso em: 22 jul. 2026.