1. Bono, J. E., Purvanova, R. K., Towler, A. J., & Peterson, D. B. (2009). A survey of executive coaching practices. Personnel Psychology, 62, 361–404.
2. Connor, M., & Pokora, J. (2007). Coaching and mentoring at work: Developing effective practice. Buckingham: Open University Press.
3. Cox, E., Bachkirova, T., & Clutterbuck, D. (2009). The complete handbook of coaching (3rd ed.). London: SAGE Publications Ltd.
4. David, S., Clutterbuck, D., & Megginson, D. (2014). Goal orientation in coaching differs according to region, experience, and education. International Journal of Evidence Based Coaching and Mentoring, 12(2), 134.
5. Dello Russo, S., Miraglia, M., & Borgogni, L. (2016). Reducing organizational politics in performance appraisal: The role of coaching leaders for age-diverse employees. Human Resource Management, 56(5), 769–783.