Assefa, Alemayehu, et al. “Maize-Common Bean Lupine Intercrop Productivity and Profitability in Maize-Based Cropping System of Northwestern Ethiopia”. Ethiopian Journal of Science and Technology, vol. 9, no. 2, Jan. 2025, pp. 69-85, https://journals.bdu.edu.et/index.php/EJST/article/view/2037.