Munyekho, F, J Mureithi, and J Ngeny. “Effects of Rates of Inorganic and Organic Fertilisers on”. East African Agricultural and Forestry Journal 69, no. 1&2 (September 8, 2008). Accessed February 28, 2024. https://www.kalro.org/www.eaafj.or.ke/index.php/path/article/view/58.