ROME - Two journalists close to Italian Prime Minister Silvio Berlusconi said he could resign as early as Monday, immediately boosting bond and stock markets.Giuliano Ferrara, editor of the Foglio newspaper and a former minister seen as extremely close to Berlusconi, said on its website: "That Silvio Berlusconi is about to resign is clear. It is a question of hours, some say of minutes."Franco Bechis, vice-director of the pro-Berlusconi Libero newspaper, said on Twitter Berlusconi would resign on Monday night or Tuesday morning.