(3JfejI GdehGQO GdHTQjI ai GdeLJeY GdHOhi (B: (3OQGSI ai GdGfKQhHhdhLjG GdGbJUGOjI (B/ s - (3eMeO jSQi GHQGgje OYHSs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1991)
Keywords: (3GdGLJeGYs; (3GdeOfs; (3GdJZjQ GdGLJeGYis; (3GdbQis; (3GdeLJeYGJ GdHOGFjIs; (3GdGLJeGY GdHOhis