Fatkhurrahman, M.R. and Rahadian, M.I. 2025. The Analysis of Customer Service Management in Improving Human Resource Performance at Grapari Telkomsel. Jurnal Bisnis, Ekonomi, Manajemen, dan Kewirausahaan . 5, 2 (Nov. 2025), 48–56. DOI:https://doi.org/10.52909/jbemk.v5i1.215.