00649na  a2200205   4500001001300000005001500013008004100028024002700069035001800096100002200114370004800136372004000184372001700224373004100241374005700282375001100339377001400350400002500364670005400389KAC2019G475920191226135652191226 b aznnnaabn          fa aaa      7 a00000004800628842isni  a(KRI)125117651 a류기혁,d1985-  c한국(국명)[韓國]0KSH20000101452nlsh  a교육[敎育]0KSH19980051522nlsh  a교육공학  a한국교원대학교 (대학원생)  a연구원(연구자)[硏究員]0KSH19980377142nlsh  a남성  l한국어1 aRyu, Kihyeok,d1985-  a한국연구자정보(KRI)uhttps://www.kri.go.kr