Ayu Febiana Zumrotul Khoiro and Mega Tunjung Hapsari, “Pengaruh Return On Asset, Return On Equity Dan Net Profit Margin Terhadap Harga Saham Perusahaan Sub Sektor Farmasi: Effect of Return On Assets, Return On Equity and Net Profit Margin on Share Prices of Pharmaceutical Sub-Sector Companies”, J Sin Man, vol. 9, no. 1, pp. 151-157, Mar. 2022.