Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kanda Mamoru,A MEASURING METHOD FOR WATER CEMENT RATIO IN FRESH CONCRETE,Proceedings of the Japan Society of Civil Engineers,0385-5392,Japan Society of Civil Engineers,1971,1971,193,115-123,https://cir.nii.ac.jp/crid/1390282679971194112,https://doi.org/10.2208/jscej1969.1971.193_115