(3GdehShYI GdeNJUQI dCMcGe GdbJd aj GdbGfhf GdShOGfj (B1990-1980 /s - (3ScdG, gfQj QjGVs; (3Tajb, cQes ((3HjQhJ (B:s (3OGQ GdLjd ;s (3GdNQWhe (B:s (3ecJHI NdjaI YWjI,s, 1982)
Keywords: (3LQGFe GdbJds -- (3bhGfjf hJTQjYGJs -- (3GdShOGfs; (3GdbGfhf GdLfGFjs -- (3GdShOGfs