1.
M. M. Rasheed A. Analysis of Rainfall Drought Periods in the North of Iraq Using Standard Precipitation Index (SPI). AREJ [Internet]. 2010 Apr. 1 [cited 2025 Oct. 2];18(2):60-72. Available from: https://jcis.uomosul.edu.iq/index.php/arej/article/view/30950