(3bUI eTQHjI (B: s (3eSQMjI PGJ CQHYI aUhd (B/ s - (3aJMj, MSfs ((3HjQhJ (B:s (3TQcI GdeWHhYGJ,s, 1991)
Keywords: (3GdeSQMjGJ GdYQHjIs