Hasma, H., M. Ali, M. Sriasih, N. Husaefa, E. Sanjaya, and M. A. Zakaria. “Antimicrobial Antimicrobial Properties of Pineapple Peel Extract in Beef Skin Gelatin-Based Meatball Products ”. Journal La Lifesci, Vol. 7, no. 4, Oct. 2026, pp. 312-25, doi:10.37899/journallalifesci.v7i4.5984.