M. A. . Khadr and A. M. . Al-Rozbayani, “Solving Hirota-Satsuma Coupled KdV equations of time-fractional order by using Sumudu Transform with Adomian Decomposition Method”, Iraqi Journal of Science, vol. 66, no. 12, pp. 5595–5605, Dec. 2025, doi: 10.24996/ijs.2025.66.12.26.