Haque, M.A., B. Umar, and B. Zamdai. “Availability and Conditions of Agricultural Machinery in Borno State, Nigeria”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 1 (October 1, 2020): 1-6. Accessed September 15, 2025. http://azojete.com/index.php/azojete/article/view/291.