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chong won education researcher
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Han-Chung-Il kyoyuk t'onggye net'ŭwŏk'ŭ kuch'uk ŭl wihan kich'o yŏn'gu
Hwang, Chŏng-wŏn (Education researcher) · Han'guk Kyoyuk Kaebarwŏn
186 sayfa · 2014
Educational statistics / Statistics / Education