(3GdJaSjQ GdefjQ ai GdYbjOI hGdTQjYI hGdefgL (B:s (3GdeLdO GdQGHY (B/s - (3hgHI GdRMjdis ((3HjQhJ (B:s (3OGQ GdacQ GdeYGUQ, s, 1991)
(3GdeLdO GdQGHY jMJhi Ydi GdLRA GdSGHY hGdLRA GdKGefs
(3GdfU HGddZI GdYQHjIs
Keywords: (3efGgL Ydhe GdJaSjQs; (3GdTQjYI GdESdGejIs