1. Augood, D. (1973). “A Review of R&D Evaluation Methods,” IEEE Trans. Engineering Management, EM-20, 114–120.
2. Baker, N.R. and Pound, W.H. (1964). “R&D Project Selection: Where We Stand,” IEEE Trans. Engineering Management, EM-11, 124–134.
3. Baker, N.R. (1974). “R&D Project Selection Models: An Assessment,” IEEE Trans. Engineering Management, EM-21, 165–171.
4. Baker, N.R. and Freeland, J. (1975). “Recent Advances in R&D Benefit Measurement and Project Selection Methods,” Management Science, 21, 1164–1175.
5. Chase, R.B., Aquilano, N.J., and Jacobs, F.R. (1998). Production and Operations Management: Manufacturing and Services, 8th ed., Irwin-McGraw Hill, Homewood, Illinois.