(3GdOYe GdSdYi hGdCef GdZPGFi(B.s (3OQGSI JMdjdjI dYfGUQ GdeTcdI HGdOhd GdeJNdaI hLOhj GdSjGSGJ GdGbJUGOjI hGdeGdjI GdeJYdbI HMdgG ai eUQ (B/s - (3YGOd CMeO MTjTs ((3GdGScfOQjI (B:s (3OGQ GdLGeYGJ GdeUQjI(B,s, 1980)
(3jTed Ydi GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdGbJUGOs