Мавлуда ХИДИРОВА et al. 2024. STUDY OF SORPTION OF Cu2+ IONS BY POLYAMPHOLYTIC FIBROUS ION EXCHANGES BASED ON «NITRON» FIBER. News of the NUUz. 3, 3.1 (Mar. 2024), 459–463. DOI:https://doi.org/10.69617/uzmu.v3i3.1.1894.