(3Mhd efgLjI GdHMK ai GdJGQjN GdjhfGfi (B/ s - (3TMGJg eMeO GSeGYjds ((3GdbGgQI (B:s (3OGQ GdcJGH GdLGeYi ,s, 1985)
Keywords: (3GdadSaI GdjhfGfjIs; (3GdMVGQI GdGZQjbjIs; (3Gdaf GdjhfGfis; (3GdjhfGf (B- (3JGQjNs