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김영근; 장희정; 염가현
아시아교육연구, Vol.18 No.3, pp. 441-462
Kim, Oksoo; Jang, Hee Jung; Kim, Sue; Lee, Hea-Young; Cho, Eunyoung; Lee, Jung Eun; Jung, Heeja; Kim, Jiyoung
BMC Public Health, 18(1):1133