ZHENG, Y. Design of a Blockchain-Based e-Portfolio Evaluation System to Assess the Education and Teaching Process. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 05, p. pp. 261–280, 2021. DOI: 10.3991/ijet.v16i05.21081. Disponível em: https://online-journals.org/index.php/i-jet/article/view/21081. Acesso em: 24 jan. 2022.