ŚLEZIŃSKI, Krzysztof. Building Learning Power and Critical Thinking in the Field of Online Tutoring. International Journal of Research in E-learning, [S. l.], v. 5, n. 1, p. 21–33, 2019. DOI: 10.31261/IJREL.2019.5.1.02. Disponível em: https://journals.us.edu.pl/index.php/IJREL/article/view/8419. Acesso em: 5 dec. 2025.