NSPCC
Bullying and cyberbullying Facts and statistics
https://www.nspcc.org.uk/preventing-abuse/child-abuse-and-neglect/bullying-and-cyberbullying/bullying-cyberbullying-statistics/
With reference to:
- BENTLEY, H. et al 2017 How Safe Are Our Children? The most comprehensive overview of child protection in the UK 2017
- BROWN, V. et al 2011 Estimating the prevalence of young people absent from school due to bullying