(2011). Methods of calculation of tourism income Concerns between the theoretical and practical side constraints With particular reference to Iraq. , 0(89), 235-258.
. "Methods of calculation of tourism income Concerns between the theoretical and practical side constraints With particular reference to Iraq". , 0, 89, 2011, 235-258.
(2011). 'Methods of calculation of tourism income Concerns between the theoretical and practical side constraints With particular reference to Iraq', , 0(89), pp. 235-258.
Methods of calculation of tourism income Concerns between the theoretical and practical side constraints With particular reference to Iraq. , 2011; 0(89): 235-258.