Siregar, I.L., Barchia, F. and Hasanudin, H. 2019. Mustard Greens Growth and Yield Caused by Liquid Organic Fertilizer in Peat Soil. TERRA : Journal of Land Restoration. 2, 1 (Sep. 2019), 18–23. DOI:https://doi.org/10.31186/terra.2.1.18-23.