(3YKeGf Hf YaGf Ph GdfhQjf (B/ s - (3GdeYGVjOj , YHO GdbGOQ SdeGf s; (3GdeTgOGfj , eMeO LGSe MeGOj s ((3HZOGO (B: s (3OGQ GdTDhf GdKbGajI GdYGeI , s, 1989)
Keywords: (3GdNdaGA GdQGTOhf s