Musfiah Afiati Mufli, Salida A, Taufiq M. COMPARATIVE ANALYSIS OF PROFITABILITY BEFORE AND DURING COVID-19 IN HEALTH SUB-SECTOR COMPANIES LISTED ON THE INDONESIAN STOCK EXCHANGE: Covid-19, Kinerja Keuangan, Profitabilitas, Net Profit Margin, Return On Asset, Return On Equity. PIAF [Internet]. 2024 Jun. 16 [cited 2025 Nov. 8];2(1):127-3. Available from: https://ojs.paser.institute/index.php/PIAF/article/view/38