AL-Bayar, A.H.A. et al. 2011. Yeast extracts production from Whey by utilization of local isolate Kluyveromyces marxianus. Journal of Biotechnology Research Center (JOBRC). 5, 2 (Jun. 2011), 32–43. DOI:https://doi.org/10.24126/jobrc.2011.5.2.160.