@article{aboshio_shuaibu_abdulwahab_2018, 
  title={Properties of rice husk ash concrete with  periwinkle shell as coarse aggregates}, 
  volume={15}, 
  DOI={10.4314/njtd.v15i2.1}, 
  publisher={African Journals Online (AJOL)}, 
  author={Aboshio and Shuaibu and Abdulwahab}, 
  year={2018}, 
  month={May}
  }