ahlam1399
03-16-2016, 09:00 PM
With cameras and smartphones, volunteers are snapping pictures as they cruise Dar es Salaam's dirt roads.
أكثر... (http://www.npr.org/sections/goatsandsoda/2016/03/16/462361818/how-do-you-start-mapping-unmapped-streets?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/goatsandsoda/2016/03/16/462361818/how-do-you-start-mapping-unmapped-streets?utm_medium=RSS&utm_campaign=news)