00382nam a22001457a 4500003000400000005001700004008004100021040001200062082001300074100002200087245004100109260005400150300001900204650001300223OSt20140506093823.0140506b        xxu||||| |||| 00| 0 eng d  cjitshen  aA2.9 CHO  aChoedon, Phuntsho  aJournal of Research and Development.  aThimphu :bThe Royal University of Bhutan,c2007.  a115 p.c25 cm.  aJournal.