Assefa, Yewondwossen2012-01-272012-01-272009http://hdl.handle.net/10625/48089PowerPoint presentationThe presentation is an outline of slide titles.1 digital file (8 p. : ill.)application/pdfenFREE AND OPEN SOURCE SOFTWARE (FOSS)OPEN CODE SOFTWARECOLLABORATIVE TECHNOLOGYGEOGRAPHIC INFORMATION SYSTEMSPresentation