Dimawarnita, F., Maharani, K.Y., Faramitha, Y., Kalbuadi, D.N., Prakoso, H.T., Sari, I.P., Prasetyo, D., Sutanto, S. and Goenadi, D.H. 2024. Optimization of fulvic acids production from oil palm empty fruit bunches using microwave extractor. Menara Perkebunan. 92, 2 (Nov. 2024), 141–152. DOI:https://doi.org/10.22302/iribb.jur.mp.v92i2.582.