Laelatu Yudha, G.; Aryani Soemitro, R. A.; Rendy Satrya, T.; Fachrie, N. nalysis of the mpact of oil xcavation tages on lope tability ase tudy of oad and ridge onstruction rojects in ts. ingaraja-engwitani at oint 7E, ali. JIFAM 2025, 7, 1-18.