@article{lejpt17059,
 author={Aguwa, J. I.},
 year={2010},
 title={Effect of Hand Mixing on the Compressive Strength of Concrete},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={9},
 number={17},
 pages={59-68},
 url={http://lejpt.academicdirect.org/A17/059_068.pdf}
}