“Pengaruh Financial Leverage dan Operating Leverage terhadap Profitabilitas Perusahaan Pada PT. Telekomunikasi Indonesia”, EBIS, vol. 6, no. 2, pp. 29–41, Jul. 2016, Accessed: Aug. 30, 2025. [Online]. Available: https://ebis-jurnal.unsuri.ac.id/index.php/ebis/article/view/37