(3fGfSi QjMGf aVjMI ai GdHjJ GdGHjV (B/ s - (3cjdi cjffis ([S.N] : (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1991)
Keywords: (3fSGA GdfHis; (3fGfSi QjLGfs