Ikhsan, Muhammad, and Eko Budi Santoso. 2019. “Analisis Pengaruh Beta Saham, Debt To Equity Rasio (DER) Terhadap Return On Asset (ROA) Perusahaan Di Bursa Efek Indonesia”. Jurnal STEI Ekonomi 28 (02), 198 - 212. https://doi.org/10.36406/jemi.v28i02.251.