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Books about Masazumi:
Masazumi: Webster's Timeline History, 1927 - 2007 by Icon Group International (Mar 10, 2010)
Masazumi Harada [Japanese Edition] by Masazumi Harada (1992)
Shoninki: The Secret Teachings of the Ninja: The 17th-Century Manual on the Art of Concealment [Hardcover] [2010... (2010)
Shoninki: El arte del disimulo: El autentico manual de los Ninja (Spanish Edition) [Paperback]  (Author)... (2011)
Testament of Masazumi Harada dialogue Collection (2013) ISBN: 4000244728 [Japanese Import] by Asahi Shimbun western headquarters (0010)
Honda Masazumi and Hattori Sanzo - more ? earth ran heaven (1994) ISBN: 4062070472 [Japanese Import] (0010)
Stigma - tragedy of Honda Masazumi (Chuko Bunko) (1998) ISBN: 412203132X [Japanese Import] (0010)
Wiki information Masazumi:
Masazumi Harada was a Japanese doctor and medical researcher. His most famous work covered the effects of Minamata disease, a type of severe mercury poisoning that occurred in the city of Minamata, Kumamoto Prefecture during the 1950s and 1960s. His...
Honda Masazumi was a Japanese samurai of the Azuchi–Momoyama period through early Edo period, who served the Tokugawa clan. He later became a daimyo, and one of the first rōjū of the Tokugawa Shogunate. Masazumi was born in 1565; he was the eldest...