Mohamad Darwish S, Alshammari, Approximate solutions for several classes of fuzzy differential equations using residual power series method/ Alshammari Mohammad Darwish S. - xv, 154 pages : illustrations ; 30 cm. Thesis (Ph.D) - Universiti Kebangsaan Malaysia, 2021. References : page [139]-149. Subjects--Corporate Names: Universiti Kebangsaan Malaysia--Dissertations. Subjects--Topical Terms: Dissertations, Academic--Malaysia.Fuzzy sets.Fuzzy measure theory.Fuzzy algorithms.