jumaa, S., salieh, (2009). Systems theory Reading in the concept and effects. , 0(34), 280-295.
saad jumaa; salieh. "Systems theory Reading in the concept and effects". , 0, 34, 2009, 280-295.
jumaa, S., salieh, (2009). 'Systems theory Reading in the concept and effects', , 0(34), pp. 280-295.
jumaa, S., salieh, Systems theory Reading in the concept and effects. , 2009; 0(34): 280-295.


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