The Extraction of Oxalate Acid from Porang Flour (Amorphophallus oncophyllus) using Microwave-Assisted Solvent Extraction. Jurnal Kimia Valensi, [S. l.], v. 9, n. 2, p. 206–215, 2023. DOI: 10.15408/jkv.v9i2.34706. Disponível em: https://journal.uinjkt.ac.id/valensi/article/view/34706. Acesso em: 27 oct. 2025.