Riskiyanti, Alfiyani Riski, and Vidya Amalia Rismanty. “Pengaruh Debt to Equity Ratio (Der) Dan Earning Per Share (Eps) Terhadap Return on Asset (Roa) Pada PT Kalbe Farma Tbk Periode 2012-2023”. Jurnal Ilmiah PERKUSI, vol. 5, no. 2, Apr. 2025, pp. 401-1, doi:10.32493/j.perkusi.v5i2.48510.