Rohmah, J. et al. 2018. Kontaminasi Escherichia coli pada Makanan Jajanan di Kantin Universitas Muhammadiyah Sidoarjo: Contamination of Escherichia coli in Snacks at the Canteen of Muhammadiyah University of Sidoarjo. Medicra (Journal of Medical Laboratory Science/Technology). 1, 1 (Jul. 2018), 15–26. DOI:https://doi.org/10.21070/medicra.v1i1.1521.