@article{lejpt23041,
 author={O. Raheem, M. and S. Otuoze, H. and Abdulhafiz, U.},
 year={2013},
 title={Properties of Rice Husk Ash Stabilized Laterite Roof Tiles},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={12},
 number={23},
 pages={41-50},
 url={http://lejpt.academicdirect.org/A23/041_050.pdf}
}