Abeje, Yimer, Tsedalu Jemberu, and Tesfay Jorgi. “Weeding Frequency to Increase Productivity of Sorghum in Gumara -Maksegnit Watershed”. ABC Journal of Advanced Research 9, no. 1 (May 26, 2020): 31–38. Accessed May 3, 2024. https://i-proclaim.my/journals/index.php/abcjar/article/view/502.