?url_ver=Z39.88-2004&rft_id=10.1007%2Fs40996-020-00436-3&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Khan&rft.au=Khan%2C+S.U.&rft.aufirst=S.U.&rft.atitle=Physical+and+Mechanical+Properties+of+Concrete+with+Locally+Produced+Metakaolin+and+Micro-silica+as+Supplementary+Cementitious+Material&rft.pages=1199-1207&rft.issue=4&rft.volume=44&rft.issn=22286160&rft.date=2020&rft.title=Iranian+Journal+of+Science+and+Technology+-+Transactions+of+Civil+Engineering&rft.genre=article