(3cTa GdEdHGS YeG UM heGde jUM ef bUI GdNVQ CHj GdYHGS (B/s - (3YHO GdebJOQ, GHQGgje Hf aJMj (B.s; (3GdLRGFQj, LGHQs; (3fhQ GdOjf , eMeO UahJ s ((3LOI (B- (3GdSYhOjI (B:s (3OGQ GdeMeOj,s, 1997)
Keywords: (3bUU GdbQBfs -- (3NVQ Ydjg GdSdGes