@article{lejpt15067,
 author={O. Okafor N. Okonkwo, F. a. U.},
 year={2009},
 title={Effects of Rice Husk Ash on Some Geotechnical Properties of Lateritic Soil},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={8},
 number={15},
 pages={67-74},
 url={http://lejpt.academicdirect.org/A15/067_074.pdf}
}