(3TQM ZQGFH GdYGde GdMOjK (B: s (3cja jaYdhf Pdc (B/ s - (3ShJhf, cGQhdjfs; (3WjahQ, eGLOs ((3HjQhJ (B:s (3GdOGQ GdYQHjg ddYdhe,s, 1991)
Keywords: (3YLGFH h ZQGFHs