(3SLf GdfSGA(B, (3eSQMjI ef aUdjf (B/ s - (3aJMjI GdYSGds ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1993)
Keywords: (3GdGOH GdYQHis; (3GdeSQMjGJ GdeUQjIs; (3GdeSQMjGJ GdYQHjIs