VEALE, Kylie. Internet gift economies: Voluntary payment schemes as tangible reciprocity. First Monday, [S. l.], v. 8, n. 12, 2003. DOI: 10.5210/fm.v8i12.1101. Disponível em: https://firstmonday.org/ojs/index.php/fm/article/view/1101. Acesso em: 16 apr. 2024.