00547    a2200157   4500003000500000038000600005082000600011100001700017245009600034260008200130300003900212500005700251563000600308700001800314856005700332NUST  aa  aa  aHuma Chudhry  aSecure document sharing in a multi level security environmentcHuma Chudhry & Wajeeha Javed  aIslamabad :bNUST School of Electrical Engineering & Computer Science,c2010.  a97 p. :bill. ;c27 cm. +e1CD ROM  aSupervisors : Mr. M. Awais Shibli, Dr. Fauzan Mirza.  aa  aWajeeha Javed  uhttp://10.250.8.41:8080/xmlui/handle/123456789/10372