Sidabalok, Inawaty, Rera Aga Salihat, and Astri Pujilillah. 2021. “THE USE OF PINEAPPLE WASTE EXTRACT ON THE EXTRACTION OF GELATIN FROM TUNA SKIN (Thunnus Albacares)”. JURNAL KATALISATOR 6 (2):197-210. https://doi.org/10.62769/katalisator.v6i2.642.