Susanna, D., Kusuma, A., Mairani, T. and Fitria, L. 2020. The implementation of the five keys to safer food in campus cafeterias and the effects on <em>Escherichia coli</em> contamination. Italian Journal of Food Safety. 9, 3 (Nov. 2020). DOI:https://doi.org/10.4081/ijfs.2020.8782.