(3GdGSdGe dG jYQa GdYfa(B: (3Gdeda GdSQi ddLeGYGJ GdGSdGejI ai eUQ (B/ s - (3fHjd aGQSs ([S.N] : (3GdOGQ GdTQbjI , s, 1992)
Keywords: (3eUQs; (3JGQjNs; (3GdGZJjGds; (3GdGQgGHs; (3GdGSdGe hGdSjGSIs