Witaningrum, A.M. et al. 2021. Detection of Class 1 Integron Encoding Gene in Multidrug Resistance (MDR) Citrobacter freundii Isolated from Healthy Broiler Chicken. Tropical Animal Science Journal. 44, 3 (Aug. 2021), 363–368. DOI:https://doi.org/10.5398/tasj.2021.44.3.363.