Mufida SN, Herdyastuti N. Extraction of Tilapia Scale (Oreochromis spp.) Gelatin with Variations in Citric Acid Concentration and Demineralization Time. JSAI [Internet]. 2022Aug.30 [cited 2025Feb.7];6(3):193-204. Available from: https://ejournalfpikunipa.ac.id/index.php/JSAI/article/view/237