Dejene Kebede, and TK Das. “Appraisal of Species-Wise Weed Distribution and Critical Period of Weed Competition in Sorghum at Kolladiba, North Gondar”. Pest Managment Journal of Ethiopia 10 (March 10, 2023): 69–76. Accessed May 15, 2024. https://ppseonlinejournal.org/index.php/PMJE/article/view/255.