Abraham, P., Banwo, O. O., Kashina, B. D., Alegbejo, M. D., (2020). Journal of Agriculture and Rural Development in the Tropics and Subtropics 121(1), 127-133. Kassel University Press, Kassel, Germany. English language
Kenya, Kenya Agricultural and Livestock Research Organization (2014) External factsheets, Kenya Agricultural and Livestock Research Organization, English language
Harpreet Kaur, Harbans Singh, Nadeem Mubarik, Santosh Kumari, Gupta, R. C., Saggoo, M. I. S., (2011). Cytologia 76(3), 309-318. The Japan Mendel Society, Tokyo, Japan. English language
Doust, A. N., Kellogg, E. A., (2002). American Journal of Botany 89(8), 1203-1222. Botanical Society of America Inc., Columbus, USA. English language
Veldkamp, J. F., (1999). Flora Malesiana Bulletin 12(5), 231-239. English language
Ngouajio, M., Daelemans, A., (1993). Tropicultura 11(1), 16-19. English language
Mesfin, T., Bosque-Pérez, N. A., Buddenhagen, I. W, Thottappilly, G., Olojede, S. O., (1992). Plant Disease 76(8), 789-795. English language
Kermarrec, A., Degras, L., Anais, A., (1988). Bulletin Agronomique Antilles-Guyane(No. 7), 36-38. French language
Bouxin, G., (1975). Vegetatio 29(3), 155-167. English language