O-Sono's Ghost (sources)
- Kwaidan, by Lafcadio Hearn, 1907 Leipzig, Germany [first published in April 1904]. pg. 83-99. Online at: https://books.google.com/books?id=6yi4Cj7o-SMC&printsec=frontcover&dq=kwaidan&hl=en&sa=X&ei=Wa-4VPTXBY3loATkm4CIBA&ved=0CB0Q6AEwAA#v=onepage&q=kwaidan&f=false
- "Why do Japanese ghosts not have feet?" by Zack Davisson, article in the Hyakumonogatari Kaidankai website, posted 1-20-2011, viewed 1-16-2015. Online at: http://hyakumonogatari.com/2011/01/20/why-do-japanese-ghosts-not-have-feet/