(3cJGH GdebJUO aj TQM GdGjVGM (B/ s - (3GdLQLGfj , YHO GdbGgQ s; (3GdeQLGf , cGXe HMQ s ((3HZOGO (B: s (3OGQ GdQTjO ddfTQ , s, 1982)
Keywords: (3GddZI GdYQHjI s