Abera, Tolera, Buzayehu Tola, Tolcha Tufa, Adane Adugna, Hirpa Legesse, and Tesfaye Midega. “Effects of Blended and Urea Fertilizer Rate on Yield and Yield Components of Maize in Ultisols of Liben Jawi District”. Journal of Science and Sustainable Development 8, no. 2 (July 28, 2020): 50-61. Accessed April 21, 2024. https://aujssd.ethernet.edu.et/index.php/jssd/article/view/149.