M. H. Khalaf, “The Relationship Between the SST of the Surface Mediterranean and the Temperature/Precipitation of Middle East Using Empirical Orthogonal Function For the Period (1980-2009)”, Al-Mustansiriyah J. Sci., vol. 28, no. 1, pp. 1–4, Nov. 2017, doi: 10.23851/mjs.v28i1.238.