Manurung, B. and Sinaga, H. D. E. (2025) “Building Customer Loyalty in the Digital Economy Era: The Role of CRM Innovation and Promotional Strategies at Smarco Superstore Ring Road City Walks Medan: Membangun Loyalitas Pelanggan di Era Ekonomi Digital: Peran Inovasi CRM dan Strategi Promosi di Smarco Superstore Ring Road City Walks Medan”, PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC), 4(1), pp. 217–228. doi: 10.47663/ibec.v4i1.356.