Hutagaol, K. and Simanjuntak, D.N. 2019. Effect of Liquidity, Debt Policy, Profitability, and Company Size on Systematic Risk at 50 Companies with Level of Trade of Activities in Indonesia Stock Exchange. 11th International Scholars Conference. 5, 1 (Aug. 2019), 58. DOI:https://doi.org/10.35974/isc.v5i1.1456.