Development Study of Binding Agent in Diffusive Gradient In Thin Films (DGT) Technique for Absorption of Phosphate Compounds using Nano-La2O3. Valensi [Internet]. 2022 Nov. 30 [cited 2025 Dec. 22];8(2):280-8. Available from: https://journal.uinjkt.ac.id/valensi/article/view/26952