1. 1) ISOBE Katu (1993): Polishing sand of Handa, Tsu-shi - About the history and origin, Tsu people's culture No. 20,pp. 50-57,1993.
2. 2) Japanese Standards and Explanations of Laboratory Tests of Geomaterials, Japanese Geotechnical Society, p.96,2009.
3. 3) KAWAJIRI Shunzo, KAWAGUCHI Takayuki, SHIBUYA Satoru: Measurement and Evaluation of Elastic Shear Modulus of Sandy Geomaterial, Journal of the Society of Materials Science, Japan, Vol.62, No.1, pp.39-44, Jan.2013
4. 4) NISHIOKA Takahisa,SHIBUYA Satoru,WATANABE Hiroyuki,OKUMURA Tateo: The history and characteristic of Polishing sand, Journal of the Japanese Geotechnical Society (Submitted).
5. 5) SHIBUYA Satoru and Tanaka Hiroyuki: Estimate of elastic shear modulus of Holocene soil deposits, Soils sand Foundations, Vol. 36, No.4, pp.45-55 (1996).