Muzadi, M. R. . dan Sudrajad , O. Y. . (2026) “Optimal Investment Strategy Selection: Real Options Approach in Indonesia’s Oilfield Drilling Services”, Jurnal Relevansi : Ekonomi, Manajemen dan Bisnis, 10(1), hlm. 1–19. doi: 10.61401/relevansi.v10i1.374.