LAU, Jonathan. Digital Badge Metadata: A Case Study in Quality Assurance. Journal of Innovation in Polytechnic Education, [S. l.], v. 3, n. 1, p. 27–36, 2021. DOI: 10.69520/jipe.v3i1.93. Disponível em: https://jipe.ca/index.php/jipe/article/view/93. Acesso em: 4 dec. 2024.