Syaiful Ahyar, Muhamad Rimawan. Analisis Pengaruh Net Profit Margin (NPM), Gross Profit Margin (GPM), Return On Asset (ROA), Dan Return On Equity (ROE), Terhadap Harga Saham Pada PT Gajah Tunggal Tbk. jekombis [Internet]. 2023 Sep. 15 [cited 2025 Apr. 18];2(4):35-53. Available from: https://ejurnal.politeknikpratama.ac.id/index.php/jekombis/article/view/2556