Sudarma AF, Hartulistiyoso E, Purwanto YA, Nelwan LO, Farobie O, Hendri, et al. Demineralization of Silica-Rich Agar Processing Residues via Hydrofluoric Acid Leaching for Organic Fraction Enrichment. Int. J. Innov. Mech. Eng. Adv. Mater. [Internet]. 2026 Aug. 21 [cited 2026 Oct. 10];8(2):130-43. Available from: https://publikasi.mercubuana.ac.id/index.php/ijimeam/article/view/38546