Regulation and Ethics in Digital Political Communication: A Systematic Review of Regulatory Frameworks, Algorithmic Transparency, and Democratic Accountability in the Platform Era. Journal of Communication Analysis, [S. l.], v. 1, n. 1, p. 9, 2026. DOI: 10.58121/f2rkak69. Disponível em: https://journal.kernelxos.com/jca/article/view/16.. Acesso em: 20 apr. 2026.