Tài liệu tham khảo WikiPedia: Landsat_7 http://maps.atlogis.com/webmapping/htdocs/index.ht... http://www.atlogis.com/metamaps.html http://www.boeing.com/defense-space/space/delta/de... http://www.earthsat.com/HTML/naturalvue/ http://database.eohandbook.com/database/missionsum... http://www.geospatial.harris.com http://www.truearth.com http://www.worldwindcentral.com/wiki/Landsat http://glcf.umiacs.umd.edu/index.shtml http://worldwind.arc.nasa.gov/
