Syaf, H., Pattah, M. A., & Kilowasid, L. M. H. (2021). Quality of soil from the nickel mining area of Southeast Sulawesi, Indonesia, engineered using earthworms (Pheretima sp.). Journal of Degraded and Mining Lands Management, 8(4), 2995–3005. https://doi.org/10.15243/jdmlm.2021.084.2995