The Role of Natural Resources
https://www.scopus.com/record/display.uri?eid=2-s2.0-85033204071&doi=10.1007%2f978-3-319-46889-1_24&origin=inward&txGid=fd13380ebd3a09c1de8cb7c7aa243585
23rd مايو 2017
https://www.scopus.com/record/display.uri?eid=2-s2.0-85033204071&doi=10.1007%2f978-3-319-46889-1_24&origin=inward&txGid=fd13380ebd3a09c1de8cb7c7aa243585
23rd مايو 2017