(3GdELgGV hLQGFe GdCYQGV Hjf GdTQjYI hGdbGfhf (B:s (3OQGSI ebGQfI (B/s - (3MSfjf, YRJs ((3GdQjGV (B:s (3OGQ GdYdhe ddWHGYI hGdfTQ,s, 1984)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdRfG (B((3abg ESdGej(B)s; (3GdELgGV (B((3abg ESdGej(B)s; (3GdELgGVs -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs