DIMAWARNITA, F.; MAHARANI, K. Y.; SUTANTO, S.; FARAMITHA, Y.; KALBUADI, D. N.; GOENADI, D. H. Extraction and characterization of fulvic acid from oil palm empty fruit bunches. Menara Perkebunan, Bogor, Indonesia, v. 93, n. 2, 2025. DOI: 10.22302/iribb.jur.mp.v93i2.669. Disponível em: https://mp.iribb.org/mpjurnal/article/view/669. Acesso em: 10 jan. 2026.