Jamilah, J.; Effendi, K.; Sunadi, S.; Haryoko, W.; Utama, M. Z. H.; Kassim, N. Q. B. Biosurfactant-Enriched Organic Fertilizer As a Sustainable Strategy to Reduce Chemical Inputs and Improve Maize Performance on Ultisols. Sains Tanah J. Soil Sci. Agroclimatology 2025, 22 (2), 171-179. https://doi.org/10.20961/stjssa.v22i2.93202.