DJIANTO, Natasya Nethania Nava; TJAHYANA, Lady Joanne; WIJAYANTI, Chory Angela. The Effectiveness of Eca Aura as Brand Ambassador for Derma Angel Among the People of Surabaya. Journal of Content and Engagement, [S. l.], v. 3, n. 2, p. 131–146, 2025. DOI: 10.9744/joce.3.2.131-146. Disponível em: https://joce.petra.ac.id/index.php/joce/article/view/57. Acesso em: 10 jul. 2026.