Riny Tri Yuliandita, M.Natsir Nugroho, Nofierni Nofierni. Customer Retention Enhancement Strategies Using Bal-anced Scorecard During Service Expansion and Excellence Center Development. IJEMS [Internet]. 2026 May 11 [cited 2026 Oct. 4];3(2):66-81. Available from: https://international.areai.or.id/index.php/IJEMS/article/view/1194