R. Lumbantobing and Susanto Salim, “Does the Leverage Ratio Mediate the Effect of Liquidity Ratios, Profitability Ratios, and Activity Ratios on Stock Prices? (Empirical Study of Food and Beverage Sub-Sector Companies Listed on the Indonesia Stock Exchange for the Period of 2015-2019)”, enrichment, vol. 11, no. 2, pp. 535-543, Jun. 2021.