[2] 爻 - Wikipedia, , https://ja.wikipedia.org/wiki/%E7%88%BB
[3] 四象 (易) - Wikipedia, , https://ja.wikipedia.org/wiki/%E5%9B%9B%E8%B1%A1_(%E6%98%93)
[4] 八卦 - Wikipedia, , https://ja.wikipedia.org/wiki/%E5%85%AB%E5%8D%A6
[1] 六十四卦 - Wikipedia (, ) https://ja.wikipedia.org/wiki/%E5%85%AD%E5%8D%81%E5%9B%9B%E5%8D%A6
[6] 24059-eaw-yijing-symbols.pdf, , https://www.unicode.org/L2/L2024/24059-eaw-yijing-symbols.pdf