堆砂物River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 土砂流River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 流送物川の、 かわのRiver and Water Resources Glossary (Infrastructure Development Institute Japan) ; 流砂(ryūsa)River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 沈降物Life Science Dictionary (Shuji Kaneko) ; 底泥浚渫River and Water Resources Glossary (Infrastructure Development Institute Japan)