Silvia Putri Serum Perangin-Angin; Tridayana Br Sitepu; Aulia Darma Daulay; Bayu Wulandari. The Influence of Equity Levels, and Liquidity on Profitability at PT Bank Sumut Pusat Medan City Period 2020 to 2022. IJSMR 2024, 2, 363-378.