Mehl, James William Montague; Geldenhuys, C.J. (Coert Johannes); Roux, Jolanda; Wingfield, Michael J.(Southern African Institute of Forestry (SAIF), 2010-12)
Mehl, James William Montague; Geldenhuys, C.J. (Coert Johannes); Roux, Jolanda; Wingfield, Michael J.(National Inquiry Services Centre (NISC), 2010-09)