Drought Analysis in The Kurdistan Region-Iraq Using Standardized Precipitation Indices (SPI): A Case Study with in Duhok, Erbil and Sulaimaniyah Regions. INJES [Internet]. 2025 Oct. 1 [cited 2026 Aug. 9];25(4):137-46. Available from: https://earth.uomosul.edu.iq/index.php/earth/article/view/54169