1. Andrady AL (2011) Microplastics in the marine environment. Mar Pollut Bull 62:1596–1605. https://doi.org/10.1016/j.marpolbul.2011.05.030
2. Barnes DK, Galgani F, Thompson RC, Barlaz M (2009) Accumulation and fragmentation of plastic debris in global environments. Philos Trans R Soc Lond B Biol Sci 364:1985–1998. https://doi.org/10.1098/rstb.2008.0205
3. Bhana A (2018) Informal food sector makes up 40% of food market. In: Citiz. https://citizen.co.za/news/south-africa/1911566/informal-food-market-makes-up-40-of-food-market/. Accessed 28 Feb 2019
4. BMi (2011) Snacks and confectionery annual market quantification. BMi Research
5. Cheshire A, Adler E, Barbière J, Cohen Y (2009) UNEP/IOC Guidelines on survey and monitoring of marine litter. United Nations Environment Programme/ Intergovernmental Oceanographic Commission, Nairobi, Kenya