Putri, Afni Salsabila, Eja Armaz Hardi, dan Solichah Solichah. “Pengaruh Gross Profit Margin (GPM), Return on Assets (ROA), Return on Equity (ROE), Dan Net Profit Margin (NPM) Terhadap Nilai Perusahaan Pada Emiten Jakarta Islamic Index Periode 2021–2025”. Abdi Cendekia : Jurnal Pengabdian Masyarakat 5, no. 3 (September 30, 2026): 4141–4150. Diakses Oktober 17, 2026. https://zia-research.com/index.php/abdicendekia/article/view/1294.