See Robinet 1990 Robinet, Isabelle (1990). "The Place and Meaning of the Notion of Taiji in Taoist Sources Prior to the Ming Dynasty". History of Religions. 23 (4): 373–411. doi:10.1086/463205. S2CID161955134.
See Robinet 1990 Robinet, Isabelle (1990). "The Place and Meaning of the Notion of Taiji in Taoist Sources Prior to the Ming Dynasty". History of Religions. 23 (4): 373–411. doi:10.1086/463205. S2CID161955134.
Needham & Ronan 1978 Needham, Joseph; Ronan, Colin A. (1978). The Shorter Science and Civilisation in China: an abridgement of Joseph Needham's original text. Cambridge University Press. OCLC229421664.
Woolidge, Doug (June 1997). "T'AI CHI The International Magazine of T'ai Chi Ch'uan Vol. 21 No. 3". T'ai Chi. Wayfarer Publications. ISSN0730-1049.
Wile, Douglas (2007). "Taijiquan and Taoism from Religion to Martial Art and Martial Art to Religion - Journal of Asian Martial Arts Vol. 16 No. 4". Journal of Asian Martial Arts. Via Media Publishing. ISSN1057-8358.