Edy Subroto, Rossi Indiarto, Tensiska, Mahani. “Enzymatic Transesterification of Fish Oil and Milk Fat for The Synthesis of Structured Lipids: Study on The Effect of Reaction Time and Temperature”. International Journal of Advanced Science and Technology, Vol. 29, no. 05, June 2020, pp. 11837-45, http://sersc.org/journals/index.php/IJAST/article/view/25379.