Dhaif Allah AA, Md. Hashim N. Analysis of Meteorological Drought in Tihama Plain, Yemen Using Standardized Precipitation Index (SPI). GEOG [Internet]. 2016 Oct. 5 [cited 2024 Nov. 21];4(2):9-20. Available from: https://ejournal.upsi.edu.my/index.php/GEOG/article/view/1930