https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://dokumen.pub/download/the-best-course-available-a-personal-account-of-the-secret-us-japan-okinawa-reversion-negotiations-9780824864613.html&ved=2ahUKEwi045b9rdKKAxWfs1YBHTDnMhY4ChAWegQIDhAB&usg=AOvVaw0xswJLMtGCXavxZb9eZ81B
http://www4.fctv.ne.jp/~m-sumita/preface.html
#若泉敬
http://www4.fctv.ne.jp/~m-sumita/preface.html
#若泉敬