C, C., Nwaiwu, Aginam, and Anyadiegwu. “COMPARING THE FLEXURAL STRENGTH OF CONCRETE MADE WITH RIVER SAND WITH THAT MADE WITH QUARRY DUST AS FINE AGGREGATE”. International Journal of Research -GRANTHAALAYAH, vol. 6, no. 6, June 2018, pp. 453-60, doi:10.29121/granthaalayah.v6.i6.2018.1390.