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Oh, D.-G.: Korean Decimal Classification (KDC) : its history, development, characteristics, and future prospect (2021)
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Oh, D.G.: Revision of the national classification system through cooperative efforts : a case of Korean Decimal Classification 6th Edition (KDC 6) (2018)
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Oh, D.-G.: Comparative analysis of national classification systems : cases of Korean Decimal Classification (KDC) and Nippon Decimal Classification (NDC) (2023)
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Dong-Geun, O.; Ji-Suk, Y.: Suggesting an option for DDC class religion (200) for nations in which religious diversity predominates (2001)
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McConnell, F.: Peoples of Melanesia : proposals for revision of DDC 19, Table 5 (1985)
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