Simon, J., K. Shawe, E. Jefthas, E. Renaud, P. Langenhoven, R. Juliani, R. Govindasamy, and D. Acquaye. 2009. “MODELS OF CROP COMMERCIALIZATION AND CROP CLUSTERS”. African Journal of Traditional, Complementary and Alternative Medicines 6 (May):428. https://journals.athmsi.org/index.php/ajtcam/article/view/836.