1. International livestock research institute. 2013. Animal Health strategy and vision for Ethiopia. (February 2013). Retrieved October 2017 from https://cgspace.cgiar.org/bitstream/handle/10568/67247/LMP_animalhealth_2013.pdf?sequence=1. International livestock research institute. 2013. Animal Health strategy and vision for Ethiopia. (February 2013). Retrieved October 2017 from https://cgspace.cgiar.org/bitstream/handle/10568/67247/LMP_animalhealth_2013.pdf?sequence=1.
2. Ministry of Agriculture. 2012. Ethiopia Animal Health Year Book 2011. (May 2012). Retrieved September 2017 from http://www.moa.gov.et/documents/93073/147337/Final+YEARBOOK+2012+%28Final%29-2/af38490e-1d07-4bfc-9038-d7c73b0f796b?version=1.0. Ministry of Agriculture. 2012. Ethiopia Animal Health Year Book 2011. (May 2012). Retrieved September 2017 from http://www.moa.gov.et/documents/93073/147337/Final+YEARBOOK+2012+%28Final%29-2/af38490e-1d07-4bfc-9038-d7c73b0f796b?version=1.0.
3. Priti S. Sajja and Rajendra Akerkar (Ed.). 2010. Advanced Knowledge Based Systems Vol 1: Model Applications and Research. Priti S. Sajja and Rajendra Akerkar (Ed.). 2010. Advanced Knowledge Based Systems Vol 1: Model Applications and Research.
4. A Review on Knowledge-based Expert System: Concept and Architecture;Tripathi K P;IJCA Special Issue on Artificial Intelligence Techniques-Novel Approaches and Practical Applications,2011
5. The Methodology of Expert Systems;Mansiya Kantureeva;IJCSNS International Journal of Computer Science and Network Security,2014