지오펜싱 기술을 활용한 긴급경보시스템 도입방안 연구

지오펜싱 기술을 활용한 긴급경보시스템 도입방안 연구

138 Pages · 2016 · 4.21 MB · Korean
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“ Open your mouth only if what you are going to say is more beautiful than the silience. ” ― BUDDHA
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