“Antioxidant Activity of Edible Film Made From Catfish (Pangasius Hypophthalmus) Gelatin Supplemented With Astaxanthin Using DPPH Method”. JURNAL PROTEKSI KESEHATAN, vol. 12, no. 2, Desember 2023, hlm. 208-13, https://doi.org/10.36929/jpk.v12i2.714.