Yihun Mola, Anbessa Dabassa and Shiferaw Demissie
Research Journal of Microbiology 9 ( 1 ): 16 - 24 , 2014
Shelema Tulu, Shiferaw Demissie and Anbessa Dabassa
Research Journal of Microbiology 9 ( 1 ): 43 - 50 , 2014