00495nam a22001697a 4500 141231b xxu||||| |||| 00| 0 eng d CD10498 Khatri, Umesh An economic valuation of invasive species (a case study of water hyacinth in Phewa lake, Pokhara Kathmandu: 2014 Dissertation Degree in Economics TU Economics Species Environment Economic value ddc VM 74335 74324 0 0 ddc 0 0 TUCL TUCL 2014-12-31 0 CD10498 A10446 2014-12-31 00:00:00 2014-12-31 VM