Sherlita Andinia Putri and Subiyantoro 2025. Implementing Relationship Marketing to Enhance Customer Loyalty. Epicheirisi: Jurnal Manajemen, Administrasi, Pemasaran dan Kesekretariatan. 8, 2 (Oct. 2025). DOI:https://doi.org/10.32486/epicheirisi.v8i2.1022.