Fischer, Klaus P. The History of an Obsession. Trans. Qian Kun. Nanjing:Jiangsu People's Publishing House, 2007.

克劳斯·费舍尔：《德国反犹史》，钱坤译。南京：江苏人民出版社，2007年。

youdao

Trigram Qian and Trigram Kun have an important position in Chouyi. They are also studied in depth by a large amount of scholars all through the ages.

乾坤两卦在《周易》各卦中占有重要的地位，也成为历来各家研究的重点。

youdao