Russell, Terence C. (2005), Tao Hongjing, Encyclopedia of Religion, Thomson Gale.
jstor.org
Greatrex 1988, p. 141. Greatrex, Roger (1988). "Sources of Scientific Knowledge in Mediaeval China". Cina (21 - XXXth European Conference of Chinese Studies Proceedings). Istituto Italiano per l'Africa e l'Oriente (IsIAO): 139–151. JSTOR40855638.
Greatrex 1988, pp. 140, 145. Greatrex, Roger (1988). "Sources of Scientific Knowledge in Mediaeval China". Cina (21 - XXXth European Conference of Chinese Studies Proceedings). Istituto Italiano per l'Africa e l'Oriente (IsIAO): 139–151. JSTOR40855638.
Greatrex 1988, p. 142. Greatrex, Roger (1988). "Sources of Scientific Knowledge in Mediaeval China". Cina (21 - XXXth European Conference of Chinese Studies Proceedings). Istituto Italiano per l'Africa e l'Oriente (IsIAO): 139–151. JSTOR40855638.
Greatrex 1988, p. 143. Greatrex, Roger (1988). "Sources of Scientific Knowledge in Mediaeval China". Cina (21 - XXXth European Conference of Chinese Studies Proceedings). Istituto Italiano per l'Africa e l'Oriente (IsIAO): 139–151. JSTOR40855638.