Waluyo, P., I. Sastrodiharjo, and Y. Hendayana. “Transforming Ex-Coal Mining Sites into Sustainable Plantations: A Case Study of Food Natural Sustainability Project in Bomba Group ”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 6, no. 5, Aug. 2024, pp. 1859-66, doi:10.38035/rrj.v6i5.1071.