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| 2004 Visiting Scholar, the North Carolina University at Chapel Hill, NC, U.S.A. | ||||||
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| 2004 Lecture at Guilford College, NC, U.S.A. | ||||||
2004 Lecture at Gwangju Art Museum for students from the Chonnam University and Chosun University ,South Korea |
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| 2006 Visiting Scholar, Appalachian State University
, NC,U.S.A. 2006 Visiting Scholar, Warren Wilson College , NC,U.S.A. 2006 Visiting Scholar, Guilford College, NC, U.S.A. |
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| comming Fall 2008 invited professor, Appalachian State University , NC,U.S.A. |
