1.
M. M. Rasheed A. Analysis of Rainfall Drought Periods in the North of Iraq Using Standard Precipitation Index (SPI). AREJ [Internet]. 2010 Apr. 28 [cited 2025 Aug. 7];18(2):60-72. Available from: https://ojs.uomosul.edu.iq/index.php/arej/article/view/26701