Shalesh, F. J., F. R. Ali, S. R. Frahan, S. A. Mahmood, and A. M. Mari. 2013. “Role of Magnesium Ions on Improvement of Fermentative Activity of Local Yeast Isolates Saccharomyces Cerevisiae for Ethanol Production”. Journal of Biotechnology Research Center 7 (3):18-26. https://doi.org/10.24126/jobrc.2013.7.3.275.