CAHYA, V. N. C.; SETYANTO, R. .; PARADISE, P. Analysis of the Effectiveness of Loyalty Membership Programs in Increasing Customer Retention Using Net Promoter Score (NPS) with Information System Support. Eduvest - Journal of Universal Studies, [S. l.], v. 5, n. 9, p. 10974–10983, 2025. DOI: 10.59188/eduvest.v5i9.52060. Disponível em: https://eduvest.greenvest.co.id/index.php/edv/article/view/52060. Acesso em: 30 may. 2026.