Yunanto, T., Suparno, S., Amanah, F., Fajriatunnisa, F., & Wisnu, N. P. (2022). Reclamation of a limestone quarry: effect of poultry manure and humic acid on the soil improvement. Journal of Degraded and Mining Lands Management, 9(4), 3773–3785. https://doi.org/10.15243/jdmlm.2022.094.3773