“STUDY OF THE DEPENDENCE OF SORPTION OF BICHROMATE IONS BY AN-31 ANION EXIT ON THE PH OF THE MEDIUM SOLUTION”, SJFSU, vol. 30, no. 5, p. 63, Oct. 2024, Accessed: Jan. 09, 2026. [Online]. Available: https://journal.fdu.uz/index.php/sjfsu/article/view/5279