Batu Bara NNM, Tuti Anggraini, Ahmad Perdana Indra. Strategies on Service Quality and Development in Using Hajj Savings Products Case Study of Bank Syariah Indonesia KCP Medan Iskandar Muda. AMAR [Internet]. 2025 Jul. 25 [cited 2026 Mar. 29];5(2):440-61. Available from: https://ojs.stieamkop.ac.id/index.php/amar/article/view/2810