(3GdYbhHI aj Gdabg GdESdGej (B/s - (3HgfSj, CMeO aJMjs ((3GdbGgQI (B:s (3OGQ GdTQhb,s, 1989)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3HHdjhLQGajI (B: (3U(B. 241-243.s
Keywords: (3GdYbhHGJ (B((3abg ESdGej(B)s; (3GdLfGjGJ (B((3abg ESdGej(B)s