(3GdbGfhf GdLfGFj hGdWH GdMOjK (B:s (3OQGSI JMdjdjI ebGQfI deTQhYjI fbd hRQY GdCYVGA GdHTQjI (B/s - (3CHh NWhI, CMeO Thbj YeQs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1986)
(3HHdjhLQGajI (B: (3U(B. 233-255.s
Keywords: (3RQGYI GdCYVGAs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdbGfhf GdLfGFjs -- (3eUQs