International Food Policy Research Institute, 'International Food Policy Research Institute (IFPRI): Financial Statements and Report of Independent Auditors as of December 31, 2008 and 2007', International Food Policy Research Institute, Washington, DC, 2009
Ojiako, I.A. (2006). Economic evaluation of adoption of improved soybean production and utilization technologies in Kaduna and Kano States Nigeria: P.hD. Thesis (p. 227). Ibadan.
Wang'ombe, G. N. 2007. Recombinant expression of potentially immunosupressive proteins of the tick vector amblyomma variegatum. MSc thesis in Animal Parasitology, Jomo Kenyatta Universituy of Agriculture and Technology.
Reyes M; Cruz C; Robiglio V, 'Gobernanza territorial e institucionalidad pública y privada para lograr la «cero deforestación» a nivel local. Un análisis en la región San Martín', 2020
Tesfa Belayneh. (30/12/2022). Effect of Nutritional Flushing with Energy and Protein on Weight Gain, Reproductive Characteristics and Semen Quality of Menz Rams in Central Highlands of Ethiopia. Addis Ababa, Ethiopia: International Center for Agricultural Research in the Dry Areas (ICARDA)