(3GdHjQjSJQhjcG hGdLdGSfhSJ (B/ s - (3LhQHGJThas; (3GMeO aDGO HdHYs ([S.N] : (3OGQ GdeSJbHd GdYQHi , s, 1988)
Keywords: (3GdGJMGO GdShajJis; (3GdGTJQGcjIs; (3GdcJdI GdTQbjIs