Reengineering human resources : achieving radical increases in service quality with 50% to 90% cost and head count reductions

Calculating human resource costs and benefits : cutting costs and improving productivity

Spencer, Lyle M., (1986)

Development and validation of a customized competency-based questionnaire : linking social, emotional, and cognitive competencies to business unit profitability

Ryan, Geoff, (2012)

The research function and the advancement of knowledge

Spencer, Lyle M., (1968)