PURNAMA, S.; AINI, Q.; RAHARDJA, U.; SANTOSO, N. P. L.; MILLAH, S. Design of Educational Learning Management Cloud Process with Blockchain 4.0 based E-Portfolio. Journal of Education Technology, [S. l.], v. 5, n. 4, p. 628–635, 2021. DOI: 10.23887/jet.v5i4.40557. Disponível em: https://ejournal.undiksha.ac.id/index.php/JET/article/view/40557. Acesso em: 29 nov. 2024.