Department of Mathematics;
Lahore Leads University;
Lahore;
Pakistan;
Department of Mathematics;
GC University;
Lahore;
Pakistan;
School of Mathematics and Statistics;
Xi’an Jiaotong University;
Xi’an;
China;
Iterative; Methods; Homotopy; Perturbation; Technique; Order; of; Convergence; Nonlinear; Equations;