(3EOGQI YedjGJ GdNUNUI h CKQgG aj EbJUGOjGJ GdhWf GdYQHj (B: s (3OQGSI ebGQfI (B/ s - (3Hf MHJhQ, YHO GdYRjR UGdMs ((3YeGf (B:s (3OGQ UaGA,s, 1997)
Keywords: (3EdZGA GdJCejes; (3GdTQcGJ GdMchejIs; (3GdJfejI GdEbJUGOjIs; (3GdHdOGf GdYQHjIs