Shitt, J. D., S. Y. Whitt, and D. H. Culpepper. “A Call For Research: The Need For Development Of Management Accounting Concepts For Professional Service Firms”. Journal of Applied Business Research (JABR), vol. 7, no. 2, Apr. 1991, pp. 45-50, doi:10.19030/jabr.v7i2.6243.