PUTRI, N. D.; SAADIDTIAR, A. F.; AFRIYADI, A. S.; APRIANI, D. Blockchain System Management for Learning 4.0. Blockchain Frontier Technology, [S. l.], v. 2, n. 2, p. 10–14, 2022. DOI: 10.34306/bfront.v2i2.152. Disponível em: https://journal.pandawan.id/b-front/article/view/152. Acesso em: 11 oct. 2025.