(3ehShYI cd GdeYQaI deGPG (B/ s - (3UbQ, LhRas ((3HjQhJ (B:s (3OGQ GMjGA GdJQGK GdYQHj,s, 1999)
Keywords: (3GdehShYGJs; (3GddZI GdYQHjIs; (3GdCSFdI h GdCLhHIs; (3GdeYdheGJ GdKbGajIs; (3fGTFhf cHGQ (B( 15 -18 (3SfI(B)s