Answer: What is the Balanced Scorecard?" 互联网档案馆的存檔,存档日期2012-09-12. DouglasW. Hubbard "How to Measure Anything: Finding the Value of Intangibles in Business"
(原始内容存档于2009-02-11). Hubbard, Douglas. How to Measure Anything: Finding the Value of Intangibles in Business. John Wiley & Sons. 2007: 46. Hubbard, Douglas. The Failure
157 Attacks on Scientology by L. Ron Hubbard, "HCO Policy Letter of 15 February 1966" Sappell, Joel; Welkos, Robert W. On the Offensive Against an Array