WulandariD., ErwantoY., PranotoY., RusmanR., and YuliatmoR., “Improvement of Bovine Split Hide Gelatin Quality by Addition of Soy Protein Isolate Using Transglutaminase Enzyme”, Trop. Anim. Sci. J., vol. 42, no. 3, pp. 237-244, Nov. 2019.