(3GWHGb GdSdWI GdTgjI (B/ s - (3eGQjGf HdGcQs; (3eQcR GdJYQjH hGdJQLeIs ([S.N] : (3GdOGQ GdYQHjI ddYdhe , s, 1992)
Keywords: (3GdGbJUGO GdefRdis; (3GdJZPjIs; (3GdWgis