PowerPoint 프레젠테이션...Change Population of Seoul (100,000) 1957 in 120 100 80 40 20 Seoul...
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PowerPoint 프레젠테이션...Change Population of Seoul (100,000) 1957 in 120 100 80 40 20 Seoul 1949 1955 since 1950 Development 1985 Transition Sustainablity 100 90 80 70 60 50