Kassam, A., G. Basch, T. Friedrich, E. Gonzalez, P. Trivino, and S. Mkomwa. “Mobilizing Greater Crop and Land Potentials Sustainably”. Hungarian Geographical Bulletin, vol. 66, no. 1, Mar. 2017, pp. 3-11, doi:10.15201/hungeobull.66.1.1.