[1] Ramirez Y. W., Steudel H. J. (2008) "Measuring knowledge work: The knowledge work quantification framework"; Journal of Intellectual Capital, 9(4): 564-584.
[2] Ramírez Y. W., Nembhard D. A. (2004) "Measuring knowledge worker productivity: A taxonomy"; Journal of Intellectual Capital, 5(4): 602-628.
[3] Englmaier F., Muehlheusser G., Roider A. (2014) "Optimal incentive contracts for knowledge workers"; European Economic Review, 67: 82-106.
[4] Drucker P. F. (1999) "Knowledge-worker productivity: The biggest challenge"; California Management Review, 41(2): 79-94.
[5] Drucker P. F. (2007) Management challenges for the 21st Century, CRC Press, New York.
[6] Ramírez Y. W. (2006) "Defining measures for the intensity of knowledge work in tasks and workers"; Department of Industrial Engineering, University of Wisconsin-Madison, Madison, WI.
[7] Hammer M., Leonard D., Davenport T. (2004) "Why don't we know more about knowledge?"; MIT Sloan Management Review, 17-18.
[8] Kelloway E. K., Barling J. (2000) "Knowledge work as organizational behavior"; International Journal of Management Reviews, 2(3): 287-304.
[9] Menhaj M., Hashemian N., Afrazeh A., Seyfi A., Fazel M. (2010) "A Model for Classification of Knowledge Products through Data Processing"; Management Researches in Iran, 13(4): 219-248. [In Persian].
[10] Pyöriä P. (2005) "The concept of knowledge work revisited"; Journal of Knowledge Management, 9(3): 116-127.
[11] Stankiewicz K. (2015) "Contemporary issues and challenges in human resource management-introduction"; In GUT FME Conference Publications (pp. 7-8), Faculty of Management and Economics, Gdansk University of Technology.
[12] Reinhardt W., Schmidt B., Sloep P., Drachsler H. (2011) " Knowledge worker roles and actions—results of two empirical studies"; Knowledge and Process Management, 18(3): 150-174.
[13] Najafi A., Afrazeh A., Fatemi Ghomi SM. (2010) "Providing an integrated method for measuring and predicting productivity of knowledge workers on the basis of time-series techniques: A Case Study of Pars Khodro Company"; Iranian Journal of Information Processing & Management, 2(64):301-334, [in Persian].
[14] Heidary Dahooie J., Afrazeh A., Mohammad Moathar Hosseini S. (2011) "An activity-based framework for quantification of knowledge work", Journal of Knowledge Management, 15(3): 422-444.
[15] Hayman A., Elliman T. (2000) "Human elements in information system design for knowledge workers"; International Journal of Information Management, 20(4): 297-309.
[16] Danesh Fard K. (2006) "Effectively managing knowledge-based organizations", Journal of Tadbir.3: 18-20, [in Persian].
[17] Shi-You, Q. U. (2008) "Knowledge characerisics of jobs and the empirical testing"; In 2008 International Conference on Management Science and Engineering 15th Annual Conference Proceedings.
[18] Wang S. (2008) "Study on the evaluation of knowledge worker value based on rough set theory", In 2008 4th International Conference on Wireless Communications, Networking and Mobile Computing (pp. 1-4), IEEE.
[19] Dahooie J., Arsalan M. (2013) "Applying fuzzy integral for evaluating intensity of knowledge work in jobs"; International Journal of Industrial Engineering Computations, 4(4): 517-534.
[20] Creswell J. W., Clark V. L. P. (2007) Designing and conducting mixed methods research, London: SAGE Publications.
[21] Davenport T. H. (2013) Thinking for a living: how to get better performances and results from knowledge workers, Harvard Business Press.
[22] Omeish S. (2013) Modeling knowledge work (Master’s Thesis, Hasselt University,
Belgium).
[23] Paavilainen N. (2012) "Knowledge work enablers and challenges in different professions (Master’s Thesis, Tampere University of technology, Finland).
[24] Holbeche L. (2009)
Aligning human resources and business strategy; (2nd Ed).
United Kingdom: Butterworth-Heinemann publications.
[25] Nonaka, I., & Takeuchi, H. (1995) The knowledge-creating company: How Japanese companies create the dynamics of innovation. Oxford university Press.
[26] Horwitz F. M., Heng C. T., Quazi H. A., Nonkwelo C., Roditi, D., Eck P. V. (2006) "Human resource strategies for managing knowledge workers: An Afro-Asian comparative analysis.; The International Journal of Human Resource Management, 17(5): 775-811.
[27] Benson J., Brown M. (2007) "Knowledge workers: What keeps them committed; what turns them away?; Work, Employment & Society, 21(1): 121-141.
[28] Zhou Y., Chen Z. (2007, September) "Analysis on the reasons for the drain of knowledge workers in companies"; In 2007 International Conference on Wireless Communications, Networking and Mobile Computing (pp. 5337-5340). IEEE.
[29] Frické M. (2009) "The knowledge pyramid: A critique of the DIKW hierarchy"; Journal of information Science, 35(2): 131-142.
[30] Ackoff R. L. (1989) "From data to wisdom", Journal of applied Systems Analysis, 16(1): 3-9.
[31] Afsar A., Hooshdar Mahjoob R., Minaee B. (2013) "Credit culstering of customers for delivering proportionate facilities"; Management Researches in Iran, 17(4), 1-24, [In Persian].