The Education on The Use of Mobile Maslahah for New Customers Through Whatsapp at Bank Jabar Banten Syariah Sub-Branch Office Banjar City. IJCSE [Internet]. 2025 Sep. 14 [cited 2026 May 31];1(1):7-12. Available from: https://kalimasadajournals.com/index.php/IJCSE/article/view/49