Obringer 1995. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.
Obringer 1995, p. 219. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.
Obringer 1995, p. 218. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.
Obringer 1995, p. 216. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.
Obringer 1995, pp. 216–217. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.
Obringer 1995, p. 217. Obringer, Frédéric (1995). "Poisoning and Toxicomany in Medieval China: Physiological Reality or Political Accusation?". In Hashimoto, Keizo; Jami, Catherine; Skar, Lowell (eds.). East Asian Science: Tradition and Beyond. Kansai University Press. pp. 215–220. OCLC35273013.