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AASRI Procedia AASRI Procedia 2 (2012) 262 – 267

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2212-6716 © 2012 Published by Elsevier B.V. Selection and/or peer review under responsibility of American Applied Science Research Institute doi:10.1016/j.aasri.2012.09.044

Hoon Jeong and Euiin Choi / AASRI Procedia 2 (2012) 262 – 267

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