 | January 2017. "Haga Town official statistics" (in Japanese). Japan. "鬼怒川・小貝川の概要 River Kinu and River Kokaigawa Summary". 下館河川事務所. Retrieved 25 January... 10 KB (568 words) - 15:05, 13 February 2024 |
| January 2017. "Haga Town official statistics" (in Japanese). Japan. "鬼怒川・小貝川の概要 River Kinu and River Kokaigawa Summary". 下館河川事務所. Retrieved 25 January... 10 KB (568 words) - 15:05, 13 February 2024 |