8Becker, G S. , 1981, A treatise on the family, Cambridge, Harvard University Press.
9Chrisman, J. J. , Chua, J.H. & Litz, R. , 2004, “Comparing the agency costs of family and non - family firms: conceptual issue and exploratory evidence”, Entrepreneurship Theory and Practice, 27 (2) , pp. 335 - 354.
10Daily, C. M. & Dollinger, M. J., 1992, "An empirical examination of ownership structure in family and professionally managed firms", Family Business Review, 5 (2) , pp. 117 - 136.
