(3GdacQ GdhGbYj YfO GHf NdOhf (B:s (3JaSjQ JMdjdj hLOdj dacQ GHf NdOhf aj HfjJg heYfGg (B/s - (3fUGQ , fGUja s ((3HjQhJ (B:s (3OGQ GdWdjYI ddWHGYI hGdfTQ ,s, 1981)
Keywords: (3GHf NdOhfs -- (3adSaIs