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Bildungscontrolling im E-Learning : erfolgreiche Strategien und Erfahrungen jenseits des ROI
Ehlers, Ulf-Daniel, (2005)
Understanding the basics of return on investment in training : assessing the tangible and intangible benefits
Phillips, Patricia Pulliam, (2002)
Exchanging skills in sales and marketing
Kodz, Jenny, (1997)
Accountability in human resource management : [techniques for evaluating the human resource function and measuring its bottom-line contribution]
Phillips, Jack J., (1996)
Handbook of training evaluation and measurement methods
Phillips, Jack J., (1997)
Return on investment in training and performance improvement programs : [a step-by-step manual for calculating the financial return]