EFFECT OF RADIATION DOSE AND FOAMING AGENT CONCENTRATION ONTO SYNTHESIS AND CHARACTERISTIC OF SUPERABSORBENT POLYACRILAMIDE-SODIUM CARBOXY METHYL CELULOSE COPOLYMER HYDROGEL - Puspitasari, Tita; Pusat Alplikasi Teknologi Isotop dan Radiasi (PATIR) - BATAN Jl. Lebak Bulus Raya No 49, Jakarta Selatan 12440 (BATAN, 2013)