Kerina , Arnold, Lucas Ngode, Wilson Opile, and Lizzy Mwamburi. “ Response of Three Legumes to Inorganic Fertilizer Application in Different Agro-Ecological Zones in Makueni County Kenya ”. African Journal of Education,Science and Technology (AJEST) 4, no. 1 (August 8, 2017): Pg 14–25. Accessed April 3, 2026. http://ajest.org/index.php/ajest/article/view/168.