(3bUI GdYfGUQ(B: (3ef aLQ GdJGQjN Gdi Gdjhe (B/ s - (3eUWai eMehO SdjeGfs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1992)
Keywords: (3GdYfGUQ GdcejGFjIs; (3GdeQcHGJ GdcjejGFjIs; (3GdhRf GdPQis