1. 1) Architectural Institute of Japan: Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures (1997) .
2. 2) Japan Association for Quaternary Research: A Collection of Quaternary period Outcrops,(1996),pp.26-27.
3. 3) T.Nagamori, Z.Sato and S.Echizenya: Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and Construction, 2001.7, 7-8.
4. 4) T.Nagamori, Z.Sato and S.Echizenya: Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and Construction, 2003.7, 323-324.
5. 5) T.Nagamori, Z.Sato and S.Echizenya: Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and Construction,2005.7, 731-732.