Hadi, Hasbul, and Diana Chalil. “Effect of Irrigation on the Changes in Wetland Rice Productivity (Oryza Sativa L.) Due to a Climate Change in North Sumatra Province”. Indonesian Journal of Agricultural Research 1, no. 1 (March 28, 2018): 51-57. Accessed May 21, 2024. https://talenta.usu.ac.id/InJAR/article/view/183.