Black, H. A., E. Brewer III, and W. E. Jackson III. “Shifting From Real Estate to Non-Real Estate Lending Activity: Evidence on the Risk and Return Profiles of Thrift Institutions”. International Journal of Banking and Finance, vol. 1, no. 1, Mar. 2003, pp. 95-117, https://e-journal.uum.edu.my/index.php/ijbf/article/view/8330.