Tham khảo Cái_Chết_Đen

Tài liệu tham khảo

WikiPedia: Cái_Chết_Đen http://www.abc.net.au/science/articles/2008/01/29/... http://www.abc.net.au/science/features/blackdeath/... http://historymedren.about.com/od/theblackdeath/a/... //www.amazon.com/dp/B01FWOO2G6 http://www.channel4.com/history/microsites/H/histo... http://www.channel4.com/history/microsites/H/histo... http://www.infoplease.com/cig/dangerous-diseases-e... http://www.jewishencyclopedia.com/view.jsp?artid=1... http://science.nationalgeographic.com/science/heal... http://www.nationalreview.com/interrogatory/kelly2...