(3GdGSdhH hGdNWGHI YfO GdYQH hGdGaQfL (B/ s - (3eMeO dWai LeYIs; (3QGHM dWai LeYIs ((3GdbGgQI (B: s (3YGde GdcJH GdMOjK , s, 1999)
Keywords: (3GdGOH GdYQHis; (3GdNWGHIs; (3GdGOH (B- (3JGQjN hfbOs; (3GdHdGZIs; (3GdNWGHI GdYQHjIs