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2. Aravindan, Aradhana and John Geddie. 2020. Singapore charges visitors for coronavirus treatment after imported Indonesian cases. Reuters, 10 March 2020. https://www.reuters.com/article/us-health-coronavirus-singapore/singapore-charges-visitors-for-coronavirus-treatment-after-imported-indonesian-cases-idUSKBN20X0EW
3. Aristotle. 340BC. Nicomachean Ethics, Books I to V. Translated by William David Ross in 1908. https://www.sacred-texts.com/cla/ari/nico/index.htm. Accessed 25 Mar 2020
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