Ardestani, F. , Fatemi, S. , Yakhchali, B. , Hosseyni, S. , Ghasem Najafpour, G. (2009), 'The Effect of Methionine and Acetate Concentrations on Mycophenolic Acid Production by Penicillium bervicompactum MUCL 19011 in Submerged Culture', World Academy of Science, Engineering and Technology, Open Science Index 32, International Journal of Chemical and Molecular Engineering, 3(8), 413 - 416.