Br Sitepu, Gressty Sari, Joko Santoso, and Wini Trilaksani. 2019. “Profiling of Collagens from Swim Bladder of Catfish (Pangasius sp.) by Acid Extraction”. Jurnal Pengolahan Hasil Perikanan Indonesia 22 (2). Bogor, ID, 327-39. https://doi.org/10.17844/jphpi.v22i2.27781.