H. O. Okech, S., C. S. Gold, S. Abele, C. M. Nankinga, P. M. Wetala, P. Van Asten, A. Nambuye, and P. Ragama. 2004. “Agronomic, Pests and Economic Factors Influencing Sustainability of Banana-Coffee Systems of Western Uganda and Potentials for Improvement”. Uganda Journal of Agricultural Sciences 9 (1):432-44. http://journal.naro.go.ug/index.php/ujas/article/view/249.