"Plague, Overview". Health Topics A to Z. Diakses tanggal 23 October 2010.
independent.co.uk
Japan triggered bubonic plague outbreak, doctor claims, [1], http://www.scaruffi.com/politics/wwii.html, A time-line of World War II, Scaruffi Piero. Prince Tsuneyoshi Takeda and Prince Mikasa received a special screening by Shirō Ishii of a film showing imperial planes loading germ bombs for bubonic dissemination over Ningbo in 1940. (Daniel Barenblatt, A Plague upon Humanity, 2004, hal. 32.)
mayoclinic.org
Clinic, Bubonic plague. "Plague". Mayo Clinic. Diarsipkan dari versi aslinya tanggal 31 May 2013. Diakses tanggal 16 June 2022.
scaruffi.com
Japan triggered bubonic plague outbreak, doctor claims, [1], http://www.scaruffi.com/politics/wwii.html, A time-line of World War II, Scaruffi Piero. Prince Tsuneyoshi Takeda and Prince Mikasa received a special screening by Shirō Ishii of a film showing imperial planes loading germ bombs for bubonic dissemination over Ningbo in 1940. (Daniel Barenblatt, A Plague upon Humanity, 2004, hal. 32.)
web.archive.org
Clinic, Bubonic plague. "Plague". Mayo Clinic. Diarsipkan dari versi aslinya tanggal 31 May 2013. Diakses tanggal 16 June 2022.