(3JNUU GdbGVj GdLfGFj hCKQg aj GdJaQjO GdbVGFj ddYbhHGJ GdJYRjQjI (B:s (3OQGSI fXQjI JWHjbjI dYjfI ef GdbVGjG aj eMGce efWbI GdQjGV HGdeedcI GdYQHjI GdSYhOjI (B/s - (3GdQThOj, CMeO Hf YHO Gddg Hf eMeOs; (3YhV, eMeO eMjj GdOjfs (1998)
(3HHdjhLQGajI (B: (3hQbI (B495-507.s
(3jTJed Ydi eSJNdU HGddZJjf GdYQHjI hGdEfLdjRjI(B.s
Keywords: (3GdSdWI GdbVGFjIs -- (3GdSYhOjIs -- (3GdQjGVs; (3GdJYRjQ (B((3abg ESdGej(B)s -- (3GdSYhOjIs -- (3GdQjGVs; (3bGfhf GdYbhHGJs -- (3GdSYhOjIs; (3QSGdI LGeYjI (B((3eGLSJjQ(B)s