Graichen, Klaus. “Modeling of Blending Processes”. Zede: Journal of Ethiopian Engineers and Architects የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት 9 (January 31, 2023): 47–51. Accessed April 10, 2026. https://ejol.aau.edu.et/index.php/ZEDE/article/view/6209.