Analysis of information sources in references of the Wikipedia article "بیل گیتس" in Persian language version.
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نامعتبر؛ نام «Bloomberg» چندین بار با محتوای متفاوت تعریف شده است. (صفحهٔ راهنما را مطالعه کنید.).
Gates remained heavily involved in company operations until June 2008, when he stepped back to focus on giving away the fortune Microsoft made him. Gates has been the richest man in the world for 15 of the last 20 years, despite having already given away at least $28 billion. He now owns 4% of Microsoft, a stake worth $13.3 billion. The bulk of his fortune is kept in his private firm Cascade Investment.