Van Heerden, J.H. (Jan Horn), 1957-; Blignaut, James Nelson; Bohlmann, Heinrich R.; Cartwright, Anton; Diederichs, Nicci; Mander, Myles(University of Pretoria, Department of Economics, 2016)
Seymore, Reyno; Adams, Philip D.; Chitiga-Mabugu, Margaret; Van Heerden, J.H. (Jan Horn), 1957-; Blignaut, James Nelson(Bureau for Economic Research and the Graduate School of Business, University of Stellenbosch, 2010)
Grote, M.; Schoeman, N.J. (Nicolaas Johannes); Truu, M.L.; Van Heerden, J.H. (Jan Horn), 1957-; Van Tonder, Jurie J.(Faculty of Economic and Management Sciences, University of Pretoria, 2000-03)