(3GdYQH (B: s (3eLdI oJYfi HJGQjN GdYQH hBOGHge hJQGKge GdacQj (B/ s ((3OGQ GdjeGeI ddHMK hGdfTQ , s, 1985)
Keywords: (3GdKbGaI GdYQHjI; GdCOH GdYQHj GdMOjK; GdJQGK GdESdGejs