Suryadi, Gian Firdaus Putra, et al. “Detection of Porcine Contamination in Beef Meatballs from Gedangan District Using PCR–RFLP”. Jurnal Biodjati, vol. 10, no. 2, Nov. 2025, pp. 332-51, doi:10.15575/biodjati.v10i2.49813.