Roulstone, D. B., & Phillips, J. J. (2008). ROI for technology projects: Measuring and delivering value. Butterworth-Heinemann.
Lua i Stíl Chicago (17ú heag.)Roulstone, D. Brian, agus Jack J. Phillips. ROI for Technology Projects: Measuring and Delivering Value. Burlington, Mass: Butterworth-Heinemann, 2008.
Lua MLA (9ú heag.)Roulstone, D. Brian, agus Jack J. Phillips. ROI for Technology Projects: Measuring and Delivering Value. Butterworth-Heinemann, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.