KIGAM IS-Geo @UCAjKGwuLbpAX8hZaRBz7BSA@youtube.com
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νκ΅μ§μ§μμμ°κ΅¬μ κ΅μ μ§μ§μμμΈμ¬κ°λ°μΌν°International School for Geoscience Resources, Korea Institute of Geoscience and Mineral Resources