Saifuddin, A., S. A. Isalm, and M. N. Anwar. “Molecular Characterization and Antimicrobial Resistance Patterns of Spp. And Escherichia Coli of Laying Chicken”. Microbes and Health, vol. 5, no. 1, Feb. 2017, pp. 4-6, doi:10.3329/mh.v5i1.31189.