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�� http://www.itdaily.kr/news/articleView.html?idxno=40187, ITDAILY, 2013. 05. 05.
�� http://www2.enewstoday.co.kr/sub_read.html?uid=289022&section=sc3, e-newstoday, 2013. 06. 20.
�� ???, 2010, ??????? ??? ??-?????? ?? 30??? ????-, ???? ?? Vol.120.
�� ???, 2007, ????? ???? ?????? ?? ?? ???? ??, ???????.
�� ???, 2006, ????? ? ??????? ???? ????, �������x�� Vol.13 No.-.
�� ???, 2012, ????? ????? ?? ???? ??: ???? ???? ??? ????, ????? ???.
�� ???, 2013, ????? ????? ?? ?? ??, ??????.
�� ???, 2009, ??????? ??? ? ????? ?? ??? ??: ??????, ????? ??????, ??? ???? ?? ?? ???? ???, ????? Vol.26 No.2.
�� ???, 2010, ???? ?????? ??? ??? ???: ??? ?????. ??????? ?????, ????? Vol.27 No.2.
�� ???, 2011, ????? ????? ??: ??????? ??? ??? ???? ????, ���WՓ�� Vol.31 No.1.
�� ???, 2010, ?????? ???? ???: ????? ??? ????, ???? Vol.51 No.3.
�� ???, 2007, ?????? ?????? ?? ??, ????, Vol.- No.98.
�� ???, 2012, ?? ? ?: ??????? ?? ??? ??? - ?????? ?? ????? ?? ???, ?? ?? Vol.38.
�� ???, 2010, ????? ??, ??.
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�� ???, 2011, ????? ??? ?? ?? : ???????? ?? ? ?????????? ????? ????, ������WУ ���մ�WԺ.
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�� ???��???, 2011, ?????? ??? ??? ??: ??????? ??? ???? ???, ?????? Vol.45 No.2.
�� ???, 2011, ?????? ?????? ?? ??, ????? ?????.