(3GdXd h GdefXhQ (B/ s - (3GdHcQj, YeGO eMeO CRgQs ((3GdehUd (B:s (3hRGQI GdJYdje GdYGdj h GdHMK GdYdej (B- (3LGeYI GdehUd,s, 1988)
Keywords: (3GdQSe GdefXhQjs; (3GdQSe GdgfOSjs