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LDR
00000nam k2200205 c 4500
001
000000067995
005
20151214174932
008
130816s ulk 000a eng
022
▼a 1226-6191
245
▼a D-수학교육연구.
260
▼b 한국수학교육학회.
856
41
▼u http://kiss.kstudy.com/journal/list_name.asp?key1=2184&key2=5011
991
▼a 전자저널