DeviH. L. N. A., SuptijahP., & NurilmalaM. (2017). Effectiveness of Alkali and Acid to Produce Collagen from Fish Skin of Striped Catifish. Jurnal Pengolahan Hasil Perikanan Indonesia, 20(2), 255-265. https://doi.org/10.17844/jphpi.v20i2.17906