Budiyanto, S., H. S. Almas, and R. Rosyida. “Involvement of Humic Acid in Production and Physiology of Soybean (Glycine Max L.) under Drought Stress Conditions”. AGROMIX, Vol. 15, no. 2, Sept. 2024, pp. 186-92, doi:10.35891/agx.v15i2.4432.