Ferriss, T. (2017). Tools of titans: The tactics, routines, and habits of billionaires, icons, and world-class performers. Boston: Houghton Mifflin Harcourt.
শিকাগো স্টাইলে সাইটেশনFerriss, Timothy. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Boston: Houghton Mifflin Harcourt, 2017.
এমএলএ সাইটেশনFerriss, Timothy. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Boston: Houghton Mifflin Harcourt, 2017.
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