Rahayu, A., Hakika , D. C. ., Amrillah, N. A. Z. . and Veranica, V. . (2023) “Synthesis and characterization of ammonium polymer for anion removal in aqueous solutions”, Polimery, 68(10), pp. 537-543. doi: 10.14314/polimery.2023.10.3.