Sulfonated Biopolymer Derived from Wheat Straw for the Recovery of Au(III). - Lkhamtogmid, Nyamjargal; Gunchin, Burmaa; Dashdendev, Burmaa; Punsantsogvoo, Munkhbaatar; Bat-Amgalan, Munkhpurev; Yunden, Ganchimeg (Polymers (20734360), 2025)