Columbia subject headings:
Harvard subject headings:
Educational surveys--Korea (South)
Elementary schools--Korea (South)
School violence--Korea (South)--Prevention.
Princeton subject headings:
Bullying in schools--Korea (South)--Public opinion.
Education, Elementary--Activity programs--Korea (South).
Public opinion--Korea (South)
School children--Korea (South)--Attitudes.
School violence--Korea (South)--Public opinion.