Umaru, M.A., M. Dalhatu, A. Bello, and H. Nawawi. “Animal Traction As Source of Farm Power in Rural Areas of Sokoto State, Nigeria”. Health, Safety and Environment 1, no. 1 (May 29, 2013): 23-28. Accessed November 23, 2024. http://sjournals.com/index.php/hse/article/view/406.