(3GdMOhO GdTQYjI hCKQgG aj JMbjb GdCef hGdGSJbQGQ ddeLJeY (B/s - (3YjO, GdZRGdj Ndjds ((3GdQjGV (B:s (3ecJHI GdeYGQa,s, 1981)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdYbhHGJ (B((3abg ESdGej(B)s; (3GdMOhO (B((3TQjYI ESdGejI(B)s; (3GdCMcGe GdTQYjIs