NIKOLSKAYA, O. L. Choosing appropriate forms, methods, and study aids. International Journal of Social Sciences and Humanities, [S. l.], v. 4, n. 2, p. 69–76, 2020. DOI: 10.29332/ijssh.v4n2.409. Disponível em: https://sciencescholar.us/journal/index.php/ijssh/article/view/409. Acesso em: 30 apr. 2026.