Dauda, S. M., and A. U. Dzivama. “Comparative Analyses of Locally Developed and Imported Votex Rice Thresher”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 6, Oct. 2008, pp. 60-65, https://azojete.com.ng/index.php/azojete/article/view/652.