Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ohama Fumihiko and Tomita Kazumasa,STUDY ON THE RICH MIX LIGHTWEIGHT AGGREGATE CONCRETE USING DESIGN OF EXPERIMENTS,Transactions of the Japan Society of Civil Engineers,00471798,Japan Society of Civil Engineers,1968,1968,159,49-66,https://cir.nii.ac.jp/crid/1390001205372357632,https://doi.org/10.2208/jscej1949.1968.159_49