Lumbantobing, R., 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 : Journal of Management, Vol. 11, no. 2, June 2021, pp. 535-43, doi:10.35335/enrichment.v11i2.138.