Osdaghi, E., Young, A. J., Harveson, R. M., (2020). Molecular Plant Pathology 21(5), 605-621. Wiley, Oxford, UK. English language
Ekeleme, F., Chikoye, D., (2003). Journal of Sustainable Agriculture and the Environment 5(2), 228-240. Michael Okpara University of Agriculture, Abia State, Nigeria. English language
Lenne, J. M., Vargas, A., Torres, C., (1985). Proceedings of the XV International Grassland Congress, Aug. 24-31, 1985, Kyoto, Japan., 807-809. National Grassland Research Institute, Tochigi-ken, Japan. English language
Chavarro C., A., López G., C. A., Lenné, J. M., (1985). Acta Agronomica 35(2), 64-79. Spanish language