Source: https://www.researchgate.net/publication/320436739_Profitability_Ratio_Analysis_and_its_Effect's_to_Firm_Value_in_the_Food_and_Beverage_Industry_in_Indonesian_Stock_Exchange/fulltext/63a0b196095a6a777441da56/Profitability-Ratio-Analysis-and-its-Effects-to-Firm-Value-in-the-Food-and-Beverage-Industry-in-Indonesian-Stock-Exchange.pdf