Saragih, Jopinus Ramli, Mhd Ramadhan, Anju Bherna D Nainggolan, and Novika Br Pandia. 2025. “The Influence of Promotion and Service Quality on Customers’ Decisions to Save at PT Bank Negara Indonesia, Balige Branch”. Economic: Journal Economic and Business 4 (4):829-37. https://doi.org/10.56495/ejeb.v4i4.1348.