Mindmeister’s Influence on 4C Skills in Indonesian Subject Grade 6 Elementary School in Surabaya. Journal of Digital Learning and Education, Deli Serdang, Indonesia, v. 5, n. 1, p. 9–16, 2025. DOI: 10.52562/jdle.v5i1.1376. Disponível em: https://journal.moripublishing.com/index.php/jdle/article/view/1376. Acesso em: 22 jul. 2026.