DINIRA, Layta et al. In situ Measurement of Phosphate using Fe3O4/Chelex®100-Agarose-Oxalic Acid Hydrogel in Diffusive Gradient in Thin Films. Molekul, [S.l.], v. 19, n. 2, p. 388-399, july 2024. ISSN 2503-0310. Available at: <https://jos.unsoed.ac.id/index.php/jm/article/view/11199>. Date accessed: 01 nov. 2025. doi: https://doi.org/10.20884/1.jm.2024.19.2.11199.