KIBONA, Lusekelo. From Mining to Marketing: How Pi Currency Supports Sustainable Digital Advertising in Iringa Municipality. IJIES (International Journal of Innovation in Enterprise System), [S. l.], v. 9, n. 2, p. 174–186, 2026. DOI: 10.25124/ijies.v9i02.9196. Disponível em: https://journals.telkomuniversity.ac.id/ijies/article/view/9196. Acesso em: 27 jul. 2026.