Indriani, T., Bertham, Y. H., Hasanudin, H., Prasetyo, P. and Simanihuruk, B. W. (2022) “Effect of Humic Acid on Nutrient Availability and Yield of Upland Rice Inoculated with Biofertilizers in the Coastal Area”, TERRA : Journal of Land Restoration, 5(1), pp. 15–20. doi: 10.31186/terra.5.1.15-20.