(3GdCNhI cjfjOj (B/ s - (3YdGA GdOjf, eGLOs; (3GdeLjO, TMGOI GdYHOs ([(3O(B.(3e(B] :s (3eGLO YdGA GdOjf (B((3eJQLe (B)(3,s, 1986)
Keywords: (3ajJfGes; (3GdJGQjNs; (3GdJQGLes; (3QDSGA GdOhds; (3GdhdGjGJ GdeJMOIs