Barleany, Dhena Ria and Alwan, Hafid and Heriyanto, Heri Effect of Starch and Chitosan Addition on Swelling Properties of Neutralized Poly (Acrylic Acid)-Based Superabsorbent Hydrogels Prepared by Using γ-Irradiation Technique. Jurnal Atom Indonesia. ISSN 2356532 (Submitted)