S, R. D. H. ., S. W. . Utomo, I. . Mansur, and D. N. . Martono. “Valorizing Nickel Slag Waste for Sustainable Mine Land Rehabilitation Strategies: A Circular Economy Approach to Synergize Green Material Engineering and Ecosystem Restoration”. International Journal of Innovative Research and Scientific Studies, vol. 8, no. 6, Aug. 2025, pp. 134-56, doi:10.53894/ijirss.v8i6.9514.