Two-point distortion theorems for harmonic mappings

We establish two-point distortion theorems for sense-preserving planar harmonic mappings $f=h+\bar{g}$ which satisfies the univalence criteria in the unit disc such that, Becker’s and Nehari`s harmonic version. In addition, we find the sharp two-point distortion theorem when $h$ is a convex function, and normalized mappings such that $h(\text{D})$ is a $c$-linearly connected domain. To do this, we use the order of this family.