The Influence of Social Media and Customer Engagement on Competitive Advantage and Marketing Performance of UMKMs in Prigen. Synergy: Journal of Collaborative Sciences , [S. l.], v. 1, n. 2, p. 220–234, 2025. DOI: 10.69836/synergy.v1i2.117. Disponível em: https://sinesia.org/index.php/Synergy/article/view/117. Acesso em: 10 jun. 2026.