Belay, Lulseged, and Nigus Gabbiye. “INVESTIGATING PERFORMANCE OF VERTICAL CARBONIZING KILN FOR BRIQUETTE PRODUCTION”. Zede Journal of Ethiopian Engineers and Architects 33 (February 8, 2023): 35–44. Accessed April 3, 2025. https://ejol.aau.edu.et/index.php/ZEDE/article/view/6488.