* Contemporary Academic Research, page 24, Jan. 2008, written by Tingjun Wang, "Study of the Secret of Golden Flower internal alchemy practise". [https://archive.today/20130125223513/www.hktmc.com/ChineseMedia/Magazine/Education/62xdxsyj/15contents/2008/200801di17qi.aspx in Chinese] [http://www.daoism.ro/studiu-asupra-practicii-cultivarii-de-sine-a-misterului-florii-de-aur-a-marelui-unu-part-1/ Romanian Translation ]