TY - BOOK AU - Tiwari, Ajay Kumar AU - Gupta, Pankaj Kumar AU - Soni, Manish TI - P. C. utilities avaim operting enviroment SN - 9788181981271 U1 - 005 PY - 2011/// CY - Jaipur PB - University Book House KW - Computer science & engineering KW - Operating system ( computer ) -- enviroment ER -