(3cd TjA Yf af GdecQejI (B/ s - (3GdegOj, YfGjGJs ((3GdbGgQg (B:s (3ecJHI EHf SjfG ddfTQ h GdJhRjY h GdJUOjQ,s, 1989)
Keywords: (3GdCTZGd GdjOhjIs; (3GdecGQes