AGNES MELLIANA EVIYANTI; GILBERT TIMOTHY MAJESTY; AMRI SINURAYA. Integrated System Development for Digital Charity: Analyzing Media Communication in YouTube Marapthon Live Donations and Christian Sermon-Based Donations . Momentum Matrix: International Journal of Communication, Tourism, and Social Economic Trends, [S. l.], v. 3, n. 2, p. 33–46, 2026. DOI: 10.62951/momat.v3i2.643. Disponível em: https://international.appisi.or.id/index.php/momat/article/view/643. Acesso em: 4 jun. 2026.