KOREŇOVÁ, Lilla; HVORECKÝ, Jozef. Applying QR Codes in Facilitating Mathematics and Informatics Education. International Journal of Research in E-learning, [S. l.], v. 4, n. 2, p. 33–44, 2018. Disponível em: https://journals.us.edu.pl/index.php/IJREL/article/view/8351. Acesso em: 8 apr. 2025.