内藤記念館再整備 基本構想・基本計画を策定 [Concept and Plan for the Redevelopment of Naitō Memorial Museum] (in Japanese). Nobeoka City. 9 June 2015. Retrieved 19 August 2019.
mainichi.jp
内藤記念館 [Naitō Memorial Museum]. Mainichi Shimbun (in Japanese). 15 November 2018. Retrieved 19 August 2019.