Rohman, A. N., Barchia, M. F. and Murcitro, B. G. (2020) “Effect of Biourine on N Uptake and Cabbage (Brassica oleraceae L) Growth on Lowland Ultisol”, TERRA : Journal of Land Restoration, 3(2), pp. 39–44. doi: 10.31186/terra.3.2.39-44.