H. A. Siddig, Khalid books & textbook
Economic Policies and the Irrigated Agriculture in Sudan: Lessons from the Gezira Scheme
M. Mubarak, Amel A. Salih, Ali H. A. Siddig, Khalid
LAP LAMBERT Academic Publishing /2011-05-10 Paperback / 108 Pages
isbn-10: 3844390154 / isbn-13: 9783844390155
