@article{lejpt18001,
 author={Edomwonyi-otu Avaa, L. a. A.},
 year={2011},
 title={The Challenge of Effective Teaching of Chemistry: A Case Study},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={10},
 number={18},
 pages={1-8},
 url={http://lejpt.academicdirect.org/A18/001_008.pdf}
}