BALLA, Tamás; KIRÁLY, Sándor. Gamification and Flipped Classroom in SQL Education. Central-European Journal of New Technologies in Research, Education and Practice, [S. l.], v. 7, n. 1, p. 16–42, 2025. DOI: 10.36427/CEJNTREP.7.1.12228. Disponível em: https://ojs.elte.hu/cejntrep/article/view/12228. Acesso em: 19 jul. 2026.