References
The Open University (2020) E233 Sport And Exercise Psychology TMA01. Available at: https://learn2.open.ac.uk/mod/oucontent/view.php?id=1334519 (Accessed: 17 April 2020).
Pearson BTEC (2016) Level 3 National Extended Certificate In Health And Social Care. London: Pearson BTEC, pp. 61–62.
Pearson Edexcel (2020) INTERNATIONAL GCSE Biology (9-1) SAMPLE ASSESSMENT MATERIALS: Pearson Edexcel International GCSE In Biology (4BI1). [ebook] p. 18. Available at: https://qualifications.pearson.com/ content/ dam/ pdf/ International%20GCSE/ Biology/ 2017/ specification-and-sample-assessments/ international-gcse-Biology-2017-SAM.pdf [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 17 April 2020).