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  • Fojlaley, M. ., Kalami, A. ., & Dovlati, B. . (2014). Designing, and static and dynamic evaluation of tractor-back fertilizer sprayer with variable rate technology (VRT). Scientific Journal of Pure and Applied Sciences, 3(5), 259-263. Retrieved from http://sjournals.com/index.php/sjpas/article/view/906