| British Standards Institution, 1989. BS1629:1989. Recommendations for references to published materials. London: BSI. |
| British Standards Institution, 1990. BS5605:1990. Recommendations for citing and referencing published material. Milton Keynes: BSI. |
| BU guide to citation in the Harvard style, 2008 [online]. Bournemouth: Academic Services, Bournemouth University. Available from: https://libguides.bournemouth.ac.uk/bu-referencing-harvard-style [Accessed 6 Aug 2019]. |
| International Organisation for Standardization, 2010. ISO 690:2010: Information and documentation -- Guidelines for bibliographic references and citations to information resources. Ottawa, Canada: Library and Archives Canada. |
| MacMillan, K., Weyers, J., 2013. How to cite, reference & avoid plagiarism at university. Harlow: Pearson. |
| Pears, R. & Shields, G., 2010. Cite them right: the essential referencing guide. 9th ed. Hampshire, England: Palgrave Macmillan. |
| Snooks & Co., 2002. Style manual for authors, editors and printers. 6th ed. Canberra: John Wiley & Sons Australia. |