Kiyohito Kitabatake
- Flood control system of Koutsuki River and IWANAGA SANGOROU (2). Dans: Historical Studies in Civil Engineering, v. 20 ( 2000). (2000):
- Flood control system of Koutsuki River and IWANAGA SANGOROU (1). Dans: Historical Studies in Civil Engineering, v. 19 ( 1999). (1999):
- Kogashira-taikobashi Bridge with the blind ditches: the historical value and its roles of flood control. Dans: Historical Studies in Civil Engineering, v. 18 ( 1998). (1998):
- Hydrauric Research of Koutsuki River and Preservasion of the Five Stone Bridges. Dans: Historical Studies in Civil Engineering, v. 17 ( 1997). (1997):