Syafaat, Fitra. “Financial Performance Comparative Analysis of Sub-Industry Companies in Oil and Gas Drilling Services”. EKOMA : Jurnal Ekonomi, Manajemen, Akuntansi 4, no. 5 (June 29, 2025): 7348–7360. Accessed August 13, 2026. https://al-haramjournal.co.id/EKOMA/article/view/8926.