Kusjono, G. and Defitarani, S. 2022. Pengaruh Debt To Equity Ratio Dan Debt To Asset Ratio Terhadap Return On Asset Pada PT Kalbe Farma Tbk Periode 2009-2019. Jurnal Disrupsi Bisnis. 5, 2 (Mar. 2022), 140–150. DOI:https://doi.org/10.32493/drb.v5i2.19219.