(2009). . , 14(2), 119-125. doi: 10.22059/jdesert.2009.36327
. "". , 14, 2, 2009, 119-125. doi: 10.22059/jdesert.2009.36327
(2009). '', , 14(2), pp. 119-125. doi: 10.22059/jdesert.2009.36327
. , 2009; 14(2): 119-125. doi: 10.22059/jdesert.2009.36327


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