NurilmalaM., JacoebA. M., and DzakyR. A. “Characterization of Fish Skin Gelatin Yellowfin Tuna”. Jurnal Pengolahan Hasil Perikanan Indonesia, Vol. 20, no. 2, Aug. 2017, pp. 339-50, doi:10.17844/jphpi.v20i2.18049.