Sadi, Tofigh, et al. “Studying the Effects of El Nino Southern Oscillation on Precipitation Based on Southern Oscillation Index: Case Study for the Region of Shahr-E-Kord in Iran”. International Journal of Bio-Resource and Stress Management, vol. 2, no. Dec, 4, Apr. 2023, pp. 416-20, https://www.ojs.pphouse.org/index.php/IJBSM/article/view/187.