The New Oxford Dictionary of English (1998)  – p.540 "Diwali /dɪwɑːli/ (also Divali) noun a Hindu festival with lights...".

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"Indian Government Holiday Calendar". National Portal of India. Retrieved 16 November 2016.

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 Vasudha Narayanan; Deborah Heiligman (2008). Celebrate Diwali. National Geographic Society. p. 31.., Quote: "All the stories associated with Deepavali, however, speak of the joy connected with the victory of light over darkness, knowledge over ignorance, and good over evil".

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 Diwali – Celebrating the triumph of goodness Hinduism Today (2012);
Tina K Ramnarine (2013). Musical Performance in the Diaspora. Routledge. p. 78., Quote: "Light, in the form of candles and lamps, is a crucial part of Diwali, representing the triumph of light over darkness, goodness over evil and hope for the future."

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BN Sharma, Festivals of India, South Asia Books, pp. 9–35

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https://en.wikipedia.org/wiki/Diwali

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https://www.youtube.com/watch?v=v256kw22Lrs

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https://whatson.cityofsydney.nsw.gov.au/events/diwali-opera-house-spectacular

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http://singhstation.net/2014/10/sydney-opera-house-light-diwali-first-time/

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http://bmag.com.au/things-to-do-in-brisbane/latest/2014/09/25/diwali-festival/