1. Subsoil Maps of Osaka;Architectural Institute of Japan and The Japanese Society of Soil Mechanics and Foundation Engineering,1966
2. Subsoil Maps of Nagoya;Architectural Institute of Japan, Japanese Society of Soil Mechanics and Foundation Engineering and Investigation Committee for Subsoils in Nagoya,1969
3. Research on dynamic characteristics by dynamic triaxial tests, part 2;Hara,1970
4. Elastic moduli and strengths of clayey soil deposits;Hara,1972
5. Experimental studies on dynamic characteristics of soils;Hara,1973