{{cite journal | last1=Wibisono | first1=F. J. | author2=B. Sumiarto | author3=T. Untari | author4=M. H. Effendi | author5=5 | author6=D. A. Permatasari | author7=A. M. Witaningrum | year=2020 | title=MOLECULAR IDENTIFICATION OF CTX GENE OF EXTENDED SPECTRUM BETA-LACTAMASES (ESBL) PRODUCING ESCHERICHIA COLI ON LAYER CHICKEN IN BLITAR, INDONESIA | journal=Journal of Animal and Plant Sciences | volume=31 | issue=4 | pages=954-959 | doi=10.36899/JAPS.2021.4.0289 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=Biot-20-0012}}