(3GdbdHjdI GdKGdKI YTQ hjghO Gdjhe (B/ s - (3GMeO fLjH gGTes; (3cjSJdQ(B,(3GQKQs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3JGQjNs; (3GdjghOs; (3GdUgjhfjI hGdjghOjIs; (3GdGeHQGWhQjI GdHjRfWjIs