Kokudosha

国土社は昭和12年厚徳書院として創業しました。その後社名を国土社と改め、昭和23年より、雑誌「数学教室」「月刊社会教育」等の民間教育団体編集により編集雑誌を発行し、あわせて、児童図書・教育図書の刊行を開始、現在に至っています。

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Japan

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Rule checked 2026-10-17 · Review due 2027-01-15 · Version 1

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kabushiki gaisha

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Rule checked 2026-10-17 · Review due 2027-01-15 · Version 1

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