[1] [CITE@ja[元亨釈書 - Wikipedia]]
([TIME[2020-05-09 14:30:59 +09:00]])
<https://ja.wikipedia.org/wiki/%E5%85%83%E4%BA%A8%E9%87%88%E6%9B%B8>


[2] 関連:
[[日本古代の日時]],
[[泰澄]]