Hasibuan, S. Y., Yani, M., & Mansur, I. (2019). The effectiveness of oil spill dispersant addition for phytoremediation of petroleum-contaminated soil using Ricinus communis L. Journal of Degraded and Mining Lands Management, 6(3), 1811–1819. https://doi.org/10.15243/jdmlm.2019.063.1811