GHAZALI, O.; SALEH, O. S. A Graduation Certificate Verification Model via Utilization of the Blockchain Technology. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 10, n. 3-2, p. 29–34, 2018. Disponível em: https://jtec.utem.edu.my/jtec/article/view/4707. Acesso em: 6 dec. 2022.