Hermawan, Hengki, and Tjeri Hadrillah. 2023. “PENGARUH GROSS PROFIT MARGIN OPERATING PROFIT MARGIN NET PROFIT MARGIN TERHADAP HARGA SAHAM”. PROSIDING SENANTIAS: Seminar Nasional Hasil Penelitian Dan Pengabdian Kepada Masyarakat 4 (1):1134-43. https://openjournal.unpam.ac.id/index.php/Senan/article/view/33847.