(3MbjbI GdJfXje GdNGU hOhQI ai OYhI GdGNhGf GdeSdejf (B/ s - (3eMehO GdUHGZs ([S.N] : (3OGQ GdGYJUGe , s, 1989)
Keywords: (3GdLQGFe GdSjGSjIs; (3GdGNhGf GdeSdehfs