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Suparta, I Made, Karyawan Salain, I Made Alit, AND Wiryasa, Ngakan Made Anom. " SIFAT MEKANIS BETON DENGAN SUBSTITUSI PARSIAL SERBUK BATU BATA PADA SEMENPORTLAND" JURNAL SPEKTRAN [Online], Volume 6 Number 1 (31 January 2018)