Qurrata’yuni Pratiwi, Eustachius Hagni Wardoyo, and Eva Triani. “Test of Anti-Colonization Activity of Lactic Acid Bacteria from Goat Milk Kefir Against Extended Spectrum Beta Lactamase-Producing Escherichia Coli Bacteria in the Intestines of BALB/C House Mouse”. Jurnal Kedokteran, vol. 10, no. 4, Jan. 2022, pp. 613-9, doi:10.29303/jku.v10i4.634.