Alkamoi, Bonface, et al. “ Influence of Phosphorous Fertilizer and Lime on Seed Yield of Soybean Cultivars in Western Kenya ”. African Journal of Education,Science and Technology (AJEST), vol. 5, no. 1, Apr. 2018, pp. Pg 127-134, http://ajest.org/index.php/ajest/article/view/532.