Name Info Provider Link
free resource MDPI https://www.mdpi.com/resolver?pii=ijerph16060918
Bullying and Cyberbullying free resource MedlinePlus Health Information https://medlineplus.gov/bullyingandcyberbullying.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30875775/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/30875775
Full text from free resource Diposit Digital de la Universitat de Barcelona http://hdl.handle.net/2445/163061