(3GdYdGbGJ Hjf GdeJOjfjf hGdYdeGfjjf ai GSQGFjd (B/ s - (3djaeGf, jTYjGghs ((3GdbGgQI (B: s (3GdeLdS GdGYdi ddKbGaI , s, 2000)
Keywords: (3GdjghOjIs; (3GdYdeGfjIs; (3GdeLJeY GdGSQGFjdis; (3GSQGFjd (B- (3GdGMhGd GdSjGSjIs