(3JbQjQ Yf GdJfejI aj GdYGde (B1994 : s (3GdHfjI GdCSGSjI ef GLd GdJfejI (B/ s ((3hGTfWf (B:s (3GdHfc GdOhdj ddEfTGA hGdJYejQ,s, 1994)
Keywords: (3GdEbJUGOs; (3GdJNWjWs; (3JbQjQs; (3GdJfejI GdEbJUGOjIs