@article{lejpt30209,
 author={Bala, K. C. and Olabisi, B. A.},
 year={2017},
 title={Deterioration of moulding sand properties with number of castings},
 journal={Leonardo Electron. J. Pract. Technol.},
 volume={16},
 number={30},
 pages={209-220},
 url={http://lejpt.academicdirect.org/A30/209_220.pdf}
}