“The Extraction of Oxalate Acid from Porang Flour (Amorphophallus Oncophyllus) Using Microwave-Assisted Solvent Extraction”. Jurnal Kimia Valensi 9, no. 2 (December 15, 2023): 206–215. Accessed October 27, 2025. https://journal.uinjkt.ac.id/valensi/article/view/34706.