Saragih, R., and A. . Ghazali. “Transforming Indigenous Local Operator Competencies Toward Automation-Based Operations in Underground Mines: A Case Study of PT Freeport Indonesia’s GBC Mine”. Eduvest - Journal of Universal Studies, vol. 6, no. 8, Aug. 2026, pp. 9113-21, doi:10.59188/eduvest.v6i8.53174.