Sari, T. E. and Siswahyudianto, S. (2023) “Analysis of Customer Relationship Management Implementation in Maintaining Customer Loyalty in UMKM Bakpia Ahmad’s Family Trenggalek”, Madani: Jurnal Politik dan Sosial Kemasyarakatan, 15(1), pp. 225–243. doi: 10.52166/madani.v15i01.4096.