(3JcfhdhLjG GdMVQ hJMVjQ GdUMQGA (B/ s - (3Ydi efUhQ MeRgs ([S.N] : (3OGQ GdhaGA ddWHGYI hGdfTQ hGdJhRjY , s, 1991)
Keywords: (3JNVjQ GdUMQGAs; (3efGWb GdGSJUdGMs; (3GdejcfI GdRQGYjIs; (3RQGYI GdNVQs; (3WQb GdRQGYIs