1. Kaplan, R. S., & Norton, D. P. (1992). The Balanced Scorecard—Measures that Drive Performance. Harvard Business Review, 70(1), 71–79. This foundational article defines the four perspectives, stating the Learning and Growth perspective includes measures like employee skills, the Internal perspective includes measures like cycle time and quality, the Customer perspective includes satisfaction and delivery time, and the Financial perspective includes profitability and shareholder value.
2. Paul, D., & Cadle, J. (2020). Business Analysis (4th ed.). BCS, The Chartered Institute for IT. In Chapter 10, Section 10.4.3, "The balanced scorecard," the text explains how the framework links performance measures. It provides examples aligning employee capabilities with the 'innovation and learning' perspective and operational efficiency with the 'internal business' perspective.
3. MIT Sloan School of Management. (2004). 15.963 Management Accounting and Control, Lecture Notes, Session 10: The Balanced Scorecard. MIT OpenCourseWare. The lecture notes explicitly categorize measures. For example, "Employee skills" is listed as a core measure for the Learning and Growth perspective, while "On-time delivery" is a core measure for the Customer perspective. The Financial perspective is shown to include measures like "Return on capital employed" and "Profitability."