ANDRI NUGROHO, Aryo; DWIJAYANTI, Ida; PRAYITO, Muhammad. Validation of a Mixed Reality-based Digital Book on the Topic of Algebra for Grade 7. KnE Social Sciences, [S. l.], v. 9, n. 6, p. 708–718, 2024. DOI: 10.18502/kss.v9i6.15325. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/15325. Acesso em: 11 oct. 2025.