Masuku, Micah Bheki; Kirsten, Johann F.; Van Rooyen, C.J. (Cornelius Johannes); Perret, S. (Sylvain)(Agricultural Economics Association of South Africa, 2003-09)
University of Pretoria. Forestry and Agricultural Biotechnology Institute; University of Pretoria. FABI(Forestry and Agricultural Biotechnology Institute, University of Pretoria, 2003)