Abin, S., 2015. Animal recording as a tool for improved genetic management in African beef cattle breeds. Dissertation (MScAgric)--University of Pretoria, pp. 27-39
                                                                                                                 Blancou, J., 2001. A history of the traceability of animals and animal products. Revue scientifique et technique (International Office of Epizootics), 20 (2): 413–25.
                                                                                                                Cuthbert, B. and 
Badi, B., 2010. Current situation of animal identification and recording systems in developing countries and countries with economies in transition. 37th ICAR Annual Meeting, Riga, Latvi, 10 P
                                                                                                                                                                                                                                 FAO (Animal Production and Health), 2016. Developement of Integrated Multipurpose Animal Recording Systems, 189 p.