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Bullying and cyberbullying in polish elementary and middle schools: Validation of questionnaires and nature of the phenomena
Twardowska-Staszek, Estera, Zych, Izabela, Ortega-Ruiz, RosarioLanguage:
english
Journal:
Children and Youth Services Review
DOI:
10.1016/j.childyouth.2018.10.045
Date:
October, 2018
File:
PDF, 614 KB
english, 2018