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Rohmah, Jamilatur and Rini, Chylen Setiyo and Siti, Cholifah (2018) The Relationship Between Hygiene and Sanitation to Escherichia coli Contamination on Foods in a Campus Cafeteria. In: The Relationship Between Hygiene and Sanitation to Escherichia coli Contamination on Foods in a Campus Cafeteria, 19-20 Juli 2018, Universitas HKBP NOmmensen Medan.