NEGm, S. (2013). wheat cultivation in the KSA and the international trade theories. test, 33(2), 1-17. doi: 10.21608/caf.2013.131869
Seham NEGm. "wheat cultivation in the KSA and the international trade theories". test, 33, 2, 2013, 1-17. doi: 10.21608/caf.2013.131869
NEGm, S. (2013). 'wheat cultivation in the KSA and the international trade theories', test, 33(2), pp. 1-17. doi: 10.21608/caf.2013.131869
NEGm, S. wheat cultivation in the KSA and the international trade theories. test, 2013; 33(2): 1-17. doi: 10.21608/caf.2013.131869