(3GdOjebQGWjI ai GdejRGf JCedGJ ai GdSjGSGJ GdYQHjI hGdGaQjbjI (B/ s - (3eMeO GMeO eMLhHs ([S.N] : (3OGQ LGeYI GdNQWhe ddfTQ , s, 1989)
Keywords: (3GdYGde GdYQHis; (3GdGMhGd GdSjGSjIs; (3GdTQb GdGhSWs; (3GdOjebQGWjIs; (3GaQjbjGs; (3GdhMOI GdYQHjIs; (3GdGSJYeGQ ai GdHdGO GdYQHjIs