?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=FADLI&rft.aulast=JOHAN&rft.au=JOHAN%2C+FADLI&rft.date=27+October+2015&rft.inst=Sekolah+Tinggi+Teknologi+Dumai&rft.degree=Other&rft.tpages=4&rft.title=Perawatan+beton%2C+kuat+tekan+beton.