Gunawan, F. et al. 2017. Extraction and Characterization Gelatin of Skin Mackerel (Scomberomorus commersonii) From Province Bangka Belitung Island. Jurnal Pengolahan Hasil Perikanan Indonesia. 20, 3 (Dec. 2017), 568–581. DOI:https://doi.org/10.17844/jphpi.v20i3.19814.