CRAFT, J. R. Portable Document Format (PDF): Standardizing Document Files for Publication. DESIDOC Journal of Library & Information Technology, [S. l.], v. 23, n. 1, 2003. DOI: 10.14429/djlit.23.1.3587. Disponível em: https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/3587. Acesso em: 27 jun. 2025.