Assefa, A., T. Tadese, and M. Liben. “Influence of Time of Nitrogen Application on Productivity and Nitrogen Use Efficiency of Rain- Fed Lowland Rice (Oryza Sativa L.) in the Vertisols of Fogera Plain, Northwestern Ethiopia”. Ethiopian Journal of Science and Technology, Vol. 6, no. 1, Jan. 2025, pp. 25-31, http://journals.bdu.edu.et/index.php/EJST/article/view/1996.