what is the 7th ed apa citation for For the challenges of implementing a Pay for Performance system in a software development company, you can refer to "Pay for Performance in the Public SectorBenefits and (Hidden) Costs" by Perry, J. L., Engbers, T. A., & Jun, S. Y. (2009) in the "Journal of Public Administration Research and Theory". This paper discusses the potential challenges and drawbacks of Pay for Performance systems, particularly in collaborative work environments