1 David Allen, Getting Things Done: The Art of Stress-Free Productivity (New York: Penguin, 2001).
2 Marcus Buckingham and Curt Coffman, First, Break All the Rules: What the World’s Greatest Managers Do Differently (New York: Simon & Schuster, 1999).
3 Tom Christiansen, brian d foy, Larry Wall, and Jon Orwant, Programming Perl, 4th edition (Sebastopol, CA: O’Reilly, 2012).