Sidabalok, I. ., Salihat, R. A., & 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/10.22216/katalisator.v6i2.642