SARI, Tita Elma; SISWAHYUDIANTO, Siswahyudianto. Analysis of Customer Relationship Management Implementation in Maintaining Customer Loyalty in UMKM Bakpia Ahmad’s Family Trenggalek. Madani: Jurnal Politik dan Sosial Kemasyarakatan, [S. l.], v. 15, n. 1, p. 225–243, 2023. DOI: 10.52166/madani.v15i01.4096. Disponível em: https://ejournal.unisda.ac.id/index.php/MADANI/article/view/4096. Acesso em: 5 jun. 2026.