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): 327-39. https://doi.org/10.17844/jphpi.v22i2.27781.