Herliana, O., L. Soesanto, and E. Mawadah. “Phytobioremediation of Cadmium-Contaminated Soil Using Combination of Ipomoea Reptans Poir and Trichoderma Sp. And Its Effect on Spinach Growth and Yield”. Journal of Degraded and Mining Lands Management, vol. 6, no. 1, Sept. 2018, pp. 1519-26, doi:10.15243/jdmlm.2018.061.1519.