@article{lejpt25084,
 author={M. Usman, A. and Raji, A. and H. Waziri, N. and A. Hassan, M.},
 year={2014},
 title={Aluminium alloy - rice husk ash composites production and analysis},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={13},
 number={25},
 pages={84-98},
 url={http://lejpt.academicdirect.org/A25/084_098.pdf}
}