- Andy Mulligan. Trash. Oxford: David Fickling Books, 2010.
- "Andy Mulligan, Author of Ribblestrop." andymulliganbooks.com. 13 April 2022. <https://www.andymulliganbooks.com/>.
- " Philippines Child Trash Pickers." CBS News. 24 November 2010. 19 April 2022. <https://www.cbsnews.com/pictures/philippines-child-trash-pickers/>.
- Haroon Janjua. " 'I've never been to school': child waste pickers living on Pakistan's streets." The Guardian. 20 March 2018. 19 April 2022. <https://www.theguardian.com/global-development/2018/mar/20/child-waste-pickers-living-pakistan-streets>.
- Thomson Reuters. "Record 53.6 million tonnes of e-waste dumped globally last year, says UN report." CBC News. 2 July 2020. 19 April 2022. <https://www.cbc.ca/news/science/global-ewaste-monitor-2020-1.5634759>.
- "Beyond the Landfill: Waste Pickers Around the World." Smart Cities Dive. 19 April 2022. <https://www.smartcitiesdive.com/ex/sustainablecitiescollective/beyond-landfill-waste-pickers-around-world/28076/>.
- Andy Mulligan. "Andy Mulligan: How I wrote Trash in 10 days straight." The Guardian. 3 February 2015. 21 April 2022. <https://www.theguardian.com/childrens-books-site/2015/feb/03/andy-mulligan-trash-movie-stephen-daldry>.