(3GdYdGbGJ GdYQHjI GdJQcjI ef efXhQ YQHi (B/ s - (3eYgO GdHMhK hGdOQGSGJ GdYQHjIs ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1991)
Keywords: (3GdYGde GdYQHis; (3JGQjNs; (3GdYdGbGJ GdNGQLjIs; (3JQcjGs; (3GdGeHQGWhQjI GdYKeGfjIs; (3GdYKeGfjhfs